Posted March 20, 200817 yr Test Your Knowledge of Genetics 1) Can a recessive pied be bred from a pair of dominant pieds? 2) Can a dominant pied be bred from a pair of recessive pieds? 3) There are no known dominant varieties with red eyes. Is this statement true or false? 4) Is it possible for a bird to be visually carrying the color gray, violet, dark factor, sex-linked, dominant and recessive traits all at the same time? 5) The yellow face on a yellow face blue is considered to be a dominant trait. What is the white face on a green considered to be? A. also a dominant trait B. does not exist C. a recessive trait D. a sex-linked trait 6) Name four varieties for each of the following. Dominant Recessive Sex-linked 7) What are the only ways to breed a sex-linked cock? Mark all that apply. A. hen has to be normal, cock has to be normal B. hen has to be normal, cock has to be split C. hen has to be normal, cock had to be sex-linked D. hen has to be split, cock has to be normal E. hen has to be split, cock has to be split F. hen has to be split, cock has to be sex-linked G. hen has to be sex-linked, cock has to be normal H. hen has to be sex-linked, cock has to be split I. hen has to be sex-linked, cock has to be sex-linked 8) When a bird is said to be masking something, what does that mean? Also, give an example. A. split for another color or variety B. preventing the true visual color or variety to be seen C. dominant for large spots on a deep mask 9) What dominant varieties change appearance when they have two genes for the trait? 10) What does it mean when a bird is said to be split? A. two colors present as in a pied B. not visible on the bird but carrying one gene for another color or variety C. two colors/varieties present, dividing the bird down the middle; halfsider
March 20, 200817 yr I am an idiot - i will take on your challenge and provide many wrong answers so you Daz can show people what the real answers should be. 1) Can a recessive pied be bred from a pair of dominant pieds? Yes, 2 single factor dominant pieds that are both split to recessive pieds have a 25 % chance of producing a recessive pied. 2) Can a dominant pied be bred from a pair of recessive pieds? No. The recessive pied gene cannot maks the dominant pied gene, so if a pair of receesive pieds bred, they would only produce recessive pieds. 3) There are no known dominant varieties with red eyes. Is this statement true or false? I am going to say this statement is true. Everything I can think of that has a red eye is recessive. The -ino gene, fallows, lacewings (I think), is that it? I am sure I left something out. 4) Is it possible for a bird to be visually carrying the color gray, violet, dark factor, sex-linked, dominant and recessive traits all at the same time? I suppose it is possible. I actually changed my answer after i gave my example. For example, you may have a hen that is a dominant pied, opaline, grey with a dark factor, cinnamomn wing. technically this is possible. I am not sure if it could have both a dark factor and a violet factor. 5) The yellow face on a yellow face blue is considered to be a dominant trait. What is the white face on a green considered to be? A. also a dominant trait B. does not exist C. a recessive trait D. a sex-linked trait B - as far as I know, there has never been a white faced green. You could never get one as to get green, one parent would always have to have a yellow face, and since the yellow face is dominant, it would not be possible. 6) Name four varieties for each of the following. Dominant Recessive Sex-linked Green Blue Opaline Grey recessive pied Cinnamon Wing Dominant Pied Fallow Clearwing Yellow faced Albino Lacewing 7) What are the only ways to breed a sex-linked cock? Mark all that apply. A. hen has to be normal, cock has to be normal B. hen has to be normal, cock has to be split C. hen has to be normal, cock had to be sex-linked D. hen has to be split, cock has to be normal E. hen has to be split, cock has to be split F. hen has to be split, cock has to be sex-linked G. hen has to be sex-linked, cock has to be normal H. hen has to be sex-linked, cock has to be split I. hen has to be sex-linked, cock has to be sex-linked maybe I misunderstand what you are typing, but the hen cannot be split to a sex linked trait. She either is, or isn't. For example, a hen cannot be split to opaline. She is either opaline or not. therefore, working on that theory, the answers can be H and I. I am assuimng that is the cock is split, using the opaline example again, that means he is not opaline, but he carries the gene. If he is sex-linked, then he visually appears to be opaline. If this is not right, then my answer changes. 8) When a bird is said to be masking something, what does that mean? Also, give an example. A. split for another color or variety B. preventing the true visual color or variety to be seen C. dominant for large spots on a deep mask I am not entirely sure on this, so when it is marked, I look forward to the answer. I thought masking something was hiding it. there is a difference in split to something is there not? I am going for B. 9) What dominant varieties change appearance when they have two genes for the trait? DF spangle is a clear bird with dark eyes DF dominant pied has less dark markings and colour, more the base colour, so yellow or white. what about base colour? Green and grey are both dominant. A bird that has these both changes colour to become a grey-green. I have heard someone say that DF yellow face would produce a white faced bird, but I do not see how that is possible, or a white faced green would be possible. therefore I am going with only those 3. 10) What does it mean when a bird is said to be split? A. two colors present as in a pied B. not visible on the bird but carrying one gene for another color or variety C. two colors/varieties present, dividing the bird down the middle; halfsider B - a green bird might be split to blue. breed it with a blue bird and you could get 50% blue and 50% green/split to blue. okay Daz, how did I do? JimmyBanks wrote "when will we know if we got all the answers wrong?" Who cares? Daz will tell us later. Have a go I say!!! Edited March 20, 200817 yr by Dave_McMinn
March 20, 200817 yr I was tempted to do that but chickened out... (didn't want to show everyone just how dumb I was) thanks for being a sport Dave.
March 20, 200817 yr Author I am an idiot - i will take on your challenge and provide many wrong answers so you Daz can show people what the real answers should be. okay Daz, how did I do? JimmyBanks wrote "when will we know if we got all the answers wrong?" Who cares? Daz will tell us later. Have a go I say!!! Well you got the first one wrong... You are far from being an Idiot. i'll pm you with how you went.
March 20, 200817 yr Test Your Knowledge of Genetics 1) Can a recessive pied be bred from a pair of dominant pieds? No, Dominant Pied cross Dominant Pied gives 100% Dominant Pieds 2) Can a dominant pied be bred from a pair of recessive pieds? No, A bird cannot be split to a recessive Gene 3) There are no known dominant varieties with red eyes. Is this statement true or false? True, The four gene which produce true "red eyes" are sexlinked and recessive (albino, lutino,lacewing & fallow) 4) Is it possible for a bird to be visually carrying the color gray, violet, dark factor, sex-linked, dominant and recessive traits all at the same time? Yes 5) The yellow face on a yellow face blue is considered to be a dominant trait. What is the white face on a green considered to be? B A. also a dominant trait B. does not exist C. a recessive trait D. a sex-linked trait 6) Name four varieties for each of the following. Dominant Recessive Sex-linked Dominant: Spangle Dominant Pied Green Yellow face Recessive: Recessive Pied Greywing Fallow Blue Sex-linked: Opaline Lutino Cinnamon Lacewing 7) What are the only ways to breed a sex-linked cock? Mark all that apply. H, I A. hen has to be normal, cock has to be normal B. hen has to be normal, cock has to be split C. hen has to be normal, cock had to be sex-linked D. hen has to be split, cock has to be normal E. hen has to be split, cock has to be split F. hen has to be split, cock has to be sex-linked G. hen has to be sex-linked, cock has to be normal H. hen has to be sex-linked, cock has to be split I. hen has to be sex-linked, cock has to be sex-linked 8) When a bird is said to be masking something, what does that mean? Also, give an example. B e.g. A green Bird masking Yellow face, who when bred to a blue produces 50% yellow face offspring A. split for another color or variety B. preventing the true visual color or variety to be seen C. dominant for large spots on a deep mask 9) What dominant varieties change appearance when they have two genes for the trait? Spangle & dominant Pied 10) What does it mean when a bird is said to be split? B A. two colors present as in a pied B. not visible on the bird but carrying one gene for another color or variety C. two colors/varieties present, dividing the bird down the middle; halfsider
March 20, 200817 yr GULP! Genetics is my weak spot - great test to get the brain working though Test Your Knowledge of Genetics 1) Can a recessive pied be bred from a pair of dominant pieds? No 2) Can a dominant pied be bred from a pair of recessive pieds? No 3) There are no known dominant varieties with red eyes. Is this statement true or false? True 4) Is it possible for a bird to be visually carrying the color gray, violet, dark factor, sex-linked, dominant and recessive traits all at the same time? Ummm ??? No, because recessive and dominant is either one or the other 5) The yellow face on a yellow face blue is considered to be a dominant trait. What is the white face on a green considered to be? B A. also a dominant trait B. does not exist C. a recessive trait D. a sex-linked trait 6) Name four varieties for each of the following. Dominant Dominant Pied Spangle Green Yellow Faced Recessive Recessive pied Blue Opaline Sex-linked Cinnamon Albino 7) What are the only ways to breed a sex-linked cock? Mark all that apply. G,F A. hen has to be normal, cock has to be normal B. hen has to be normal, cock has to be split C. hen has to be normal, cock had to be sex-linked D. hen has to be split, cock has to be normal E. hen has to be split, cock has to be split F. hen has to be split, cock has to be sex-linked G. hen has to be sex-linked, cock has to be normal H. hen has to be sex-linked, cock has to be split I. hen has to be sex-linked, cock has to be sex-linked 8) When a bird is said to be masking something, what does that mean? Also, give an example. A - It's got the genes for another variety that can come out in the chick when bred A. split for another color or variety B. preventing the true visual color or variety to be seen C. dominant for large spots on a deep mask 9) What dominant varieties change appearance when they have two genes for the trait? Yellow face turns white ??? 10) What does it mean when a bird is said to be split? B A. two colors present as in a pied B. not visible on the bird but carrying one gene for another color or variety C. two colors/varieties present, dividing the bird down the middle; halfsider
March 20, 200817 yr 1) Can a recessive pied be bred from a pair of dominant pieds? yes, only if both parents were carrying the recessive gene in hidden form 2) Can a dominant pied be bred from a pair of recessive pieds? no, dom pied cannot be carried in a hidden form on the parents to be passed down 3) There are no known dominant varieties with red eyes. Is this statement true or false? True 4) Is it possible for a bird to be visually carrying the color gray, violet, dark factor, sex-linked, dominant and recessive traits all at the same time? Don't understand the question exactly, so sorry if the answer isn't what you're looking for. In general a bird can have grey, violet, dark factors, a sex-linked gene and a dominant trait and a recessive trait expressed at once. But some of these visually override each other. So although violet is expressed visually, you may not be able to tell on a grey violet with dark factor (it will only look grey with varying darkness depending on if the violet and dark factors are in DF or SF forms without breeding you may not know which is which, but it will visibly alter the color intensity of the grey. And some varieties such as recessive pied + dominant pied are located on different alleles so you could have a bird who visually is both but the dominant pied will generally be the mutation it shows visually over the other to my knowledge. However if it was something like ino (recessive) + dominant pied, the ino would visually over-ride the pied and would visually only show the recessive, and over-ride the other genes (gray, violet, etc). So although it's possible to have a bird carrying all these in a non-hidden form, the grey/violet/dark factors combined are not "Visually" able to be differentiated although technically they are all expressed. 5) The yellow face on a yellow face blue is considered to be a dominant trait. What is the white face on a green considered to be? A. also a dominant trait B. does not exist (not yet anyways!) C. a recessive trait D. a sex-linked trait 6) Name four varieties for each of the following. Dominant Recessive Sex-linked Actually there is a difference between dominant, incomplete dominant and co-dominant. Dominant: Green clearflight pied Incomplete Dominant: Yellowface Mutant 1 (complex visual inheritance with white face blue) Yellowface Mutant 2 Goldenface Dominant Pied (Australian & Dutch) Spangle Melanistic Spangle Anthracite Co-Dominant: Dark Factors Grey Factors Violet Factors Dusk Factors Recessive: Blue Recessive Grey Greywing (co-dominant with Clearwing, dominant to dilute) Clearwing (co-dominant with Greywing, dominant over Dilute) Dilute (recessive to Greywing & Clearwing) Ino (Albino and Lutino) Recessive Pied (Danish) Fallow (3 separate types: English, Scottish & German) Saddleback Crested Brownwing Blackface Faded Feather Duster Sex-Linked: Cinnamon Opaline Clearbody (dominant over Ino) Slate Not to mention many of the composites: Lacewing: Ino (recessive) + Cinnamon (sex-linked) Creamino: Ino (recessive) + Yellowface/Goldenface (dominant) Dark Eyed Clear: Recessive Pied (recessive) + Clearflight Pied (dominant) Opaline Spangle: Opaline (sex-linked) + Spangle (dominant) Full Body Greywing: Greywing (1 recessive gene) Clearwing (1 recessive gene) Rainbow: Opaline (sex-linked) + Whitewing (recessive) + Yellowface/Goldenface (dominant) 7) What are the only ways to breed a [visual] sex-linked cock? Mark all that apply. A. hen has to be normal, cock has to be normal B. hen has to be normal, cock has to be split C. hen has to be normal, cock had to be sex-linked D. hen has to be split, cock has to be normal E. hen has to be split, cock has to be split F. hen has to be split, cock has to be sex-linked G. hen has to be sex-linked, cock has to be normal H. hen has to be sex-linked, cock has to be split I. hen has to be sex-linked, cock has to be sex-linked 8) When a bird is said to be masking something, what does that mean? Also, give an example. A. split for another color or variety B. preventing the true visual color or variety to be seen For example INO (lutino/albino) can “mask” dominant pied. Although they may have this trait, the Ino prevents the pied from being visually displayed. C. dominant for large spots on a deep mask 9) What dominant varieties change appearance when they have two genes for the trait? these are called Incomplete Domianant Traits (shown in my list above) 10) What does it mean when a bird is said to be split? A. two colors present as in a pied B. not visible on the bird but carrying one gene for another color or variety C. two colors/varieties present, dividing the bird down the middle; halfsider Edited March 20, 200817 yr by Ravengypsy
March 20, 200817 yr Test Your Knowledge of Genetics 1) Can a recessive pied be bred from a pair of dominant pieds? I will say NO but you would think that being Recessive they could both carry it, but I think someone said that it's located on the same allele, so can't carry both Mutations. The same as with Texas Clearbody & Ino, a bird can only be one or the other & can't be split for both, it is either spit for Ino or TCB not both. 2) Can a dominant pied be bred from a pair of recessive pieds? NO. 3) There are no known dominant varieties with red eyes. Is this statement true or false? True. 4) Is it possible for a bird to be visually carrying the color gray, violet, dark factor, sex-linked, dominant and recessive traits all at the same time? NO as you can't have a Dominant & Recessive show visually in one bird as the Dominant Mutation will mask the Recessive. Also you can't have one bird showing Grey & Violet. 5) The yellow face on a yellow face blue is considered to be a dominant trait. What is the white face on a green considered to be? A. also a dominant trait B. does not exist C. a recessive trait D. a sex-linked trait 6) Name four varieties for each of the following. Dominant Spangle…Green…Dominant Pied…Yellow Faced Blue dominant to white faced Blue. Recessive Dilute…Recessive Pied…Clearwing…Greywing. Sex-linked Opaline…Ino…Texas Clear Body…Cinnamon. 7) What are the only ways to breed a sex-linked cock? Mark all that apply. A. hen has to be normal, cock has to be normal B. hen has to be normal, cock has to be split C. hen has to be normal, cock had to be sex-linked D. hen has to be split, cock has to be normal E. hen has to be split, cock has to be split F. hen has to be split, cock has to be sex-linked G. hen has to be sex-linked, cock has to be normal H. hen has to be sex-linked, cock has to be split I. hen has to be sex-linked, cock has to be sex-linked 8) When a bird is said to be masking something, what does that mean? Also, give an example. A. split for another color or variety B. preventing the true visual color or variety to be seen The Ino gene can mask the true genetics of a bird. C. dominant for large spots on a deep mask 9) What dominant varieties change appearance when they have two genes for the trait? Double factor Spangle…Dominant Pied. 10) What does it mean when a bird is said to be split? A. two colors present as in a pied B. not visible on the bird but carrying one gene for another color or variety C. two colors/varieties present, dividing the bird down the middle; halfsider Edited March 20, 200817 yr by Norm
March 20, 200817 yr Author Thanks Norm and Ravengypsy I have Pm'd you with my thoughts. It is good people having a go. I'll post the answers at the end of easter. :hap:
March 23, 200817 yr 1) Can a recessive pied be bred from a pair of dominant pieds? Yes, dominant pieds can carry recessive pied, producing recessive pied offspring. 2) Can a dominant pied be bred from a pair of recessive pieds? no 3) There are no known dominant varieties with red eyes. Is this statement true or false? false 4) Is it possible for a bird to be visually carrying the color gray, violet, dark factor, sex-linked, dominant and recessive traits all at the same time? No 5) The yellow face on a yellow face blue is considered to be a dominant trait. What is the white face on a green considered to be? A. also a dominant trait B. does not exist C. a recessive trait D. a sex-linked trait 6) Name four varieties for each of the following. Dominant- Normal Green, Dominant(Australian) pied, Spangle, Violet. Recessive- Recessive(Dutch) pied, Blue, Dilutes, English Fallow. Sex-linked- Opaline, Ino, Cinnamon, German Fallow. 7) What are the only ways to breed a sex-linked cock? Mark all that apply. A. hen has to be normal, cock has to be normal B. hen has to be normal, cock has to be split C. hen has to be normal, cock had to be sex-linked D. hen has to be split, cock has to be normal E. hen has to be split, cock has to be split F. hen has to be split, cock has to be sex-linked G. hen has to be sex-linked, cock has to be normal H. hen has to be sex-linked, cock has to be split I. hen has to be sex-linked, cock has to be sex-linked 8) When a bird is said to be masking something, what does that mean? Also, give an example. A. split for another color or variety B. preventing the true visual color or variety to be seen A yellowface bird thats visually green but genetically muave. C. dominant for large spots on a deep mask 9) What dominant varieties change appearance when they have two genes for the trait? Dominant(Australian) pied Spangle 10) What does it mean when a bird is said to be split? A. two colors present as in a pied B. not visible on the bird but carrying one gene for another color or variety C. two colors/varieties present, dividing the bird down the middle; halfsider
March 23, 200817 yr Author There are many that are getting the hang of genetics. Tomorrow I'll put up the answers.
March 23, 200817 yr Test Your Knowledge of Genetics 1) Can a recessive pied be bred from a pair of dominant pieds? PRETTY SURE THEY CAN'T - AS IT IS DOMINANT2) Can a dominant pied be bred from a pair of recessive pieds? NO.... Well I don't think soo3) There are no known dominant varieties with red eyes. Is this statement true or false? YES THE INO'S4) Is it possible for a bird to be visually carrying the color gray, violet, dark factor, sex-linked, dominant and recessive traits all at the same time? GEZZZZ - IS THERE A picture OF THIS BIRD ??? I AM GOING TO SAY NO BECAUSE OF THE DOM AND REC PIEDS5) The yellow face on a yellow face blue is considered to be a dominant trait. What is the white face on a green considered to be?MYTHICAL - GREEN IS A YELLOW BASED BIRD NOT WHITE ...... UNLESS IT IS DRESSED FOR HALLOWEEN AS A GOTH (Laughing out loud) : P ..... Oppps I should read ahead LOCK IN B EDDY OPPS DAZA. also a dominant traitB. does not existC. a recessive traitD. a sex-linked trait 6) Name four varieties for each of the following.Dominant Recessive Sex-linked Not too sure if I understand here goesDOMINANT: Dom Pied, YF1, Lutino, SpangleRECESSIVE: Rec Pied is the only one I know so if i can say Blue, Green, Grey and Yello there are 4 answers ...SEX-LINKED: okay I SHOULD KNOW THIS .... ABLINO's,CINAMONS,FALLOWS, LUTINO's RED EYES ARE SEX LINKED YEAH >>>7) What are the only ways to breed a sex-linked cock? Mark all that apply.A. hen has to be normal, cock has to be normalB. hen has to be normal, cock has to be splitC. hen has to be normal, cock had to be sex-linkedD. hen has to be split, cock has to be normalE. hen has to be split, cock has to be splitF. hen has to be split, cock has to be sex-linkedG. hen has to be sex-linked, cock has to be normalH. hen has to be sex-linked, cock has to be splitI. hen has to be sex-linked, cock has to be sex-linkedI THINK IT IS H However I always ask here (Laughing out loud) 8) When a bird is said to be masking something, what does that mean? Also, give an example.GUESSING THIS ONE IS BA. split for another color or varietyB. preventing the true visual color or variety to be seenC. dominant for large spots on a deep mask 9) What dominant varieties change appearance when they have two genes for the trait? OHHHHHHHH I know this one cause it becomes a double factor .... SPANGLE !!! THAT'S THE ONE10) What does it mean when a bird is said to be split?AH HA - IT IS NOT VISUAL.... IT IS CARRYING / HIDDEN ie The Violet Gene AGAIN JUMPING THE GUN ... LOCK IN B DAZZAA. two colors present as in a piedB. not visible on the bird but carrying one gene for another color or varietyC. two colors/varieties present, dividing the bird down the middle; halfsiderSoooo I don't mind that people see how Very talented I am not at Genes so you can just give the answer Daz It's okay .... *neat has placed the BIGGEST EASTER EGG on the Teachers Table NoTHIS IS MY FIRST TEST I HAVE NOT CHEATED ON .... Looking at the other posts ( after I entered ) i think I am learning better well .... THANKS TO YOU ALL ON BBC !!!!!
March 23, 200817 yr Author Good to see people having a go. Answers will be revealed tomorrow. Those that have taken the test already have their results.
March 23, 200817 yr Test Your Knowledge of Genetics 1) Can a recessive pied be bred from a pair of dominant pieds? 2) Can a dominant pied be bred from a pair of recessive pieds? 3) There are no known dominant varieties with red eyes. Is this statement true or false? 4) Is it possible for a bird to be visually carrying the color gray, violet, dark factor, sex-linked, dominant and recessive traits all at the same time? 5) The yellow face on a yellow face blue is considered to be a dominant trait. What is the white face on a green considered to be? A. also a dominant trait B. does not exist C. a recessive trait D. a sex-linked trait 6) Name four varieties for each of the following. Dominant Recessive Sex-linked 7) What are the only ways to breed a sex-linked cock? Mark all that apply. A. hen has to be normal, cock has to be normal B. hen has to be normal, cock has to be split C. hen has to be normal, cock had to be sex-linked D. hen has to be split, cock has to be normal E. hen has to be split, cock has to be split F. hen has to be split, cock has to be sex-linked G. hen has to be sex-linked, cock has to be normal H. hen has to be sex-linked, cock has to be split I. hen has to be sex-linked, cock has to be sex-linked 8) When a bird is said to be masking something, what does that mean? Also, give an example. A. split for another color or variety B. preventing the true visual color or variety to be seen C. dominant for large spots on a deep mask 9) What dominant varieties change appearance when they have two genes for the trait? 10) What does it mean when a bird is said to be split? A. two colors present as in a pied B. not visible on the bird but carrying one gene for another color or variety C. two colors/varieties present, dividing the bird down the middle; halfsider Not To-day I have a headache! Too much chocolate :(Laughing out loud):
March 23, 200817 yr Author Test Answers 1) Yes, a recessive pied can be bred from a pair of dominant pieds. Both birds would have to be split for recessive pied. If that recessive gene is passed from each of the parents to the chick, a visible recessive pied would appear. In most cases, the crossing of these two types of pieds is not recommended as the two forms of pied would begin to appear on the same bird visually at the same time. This would make them very difficult to show in either class because the markings and standards are very different. The clearflighted dominant pied is crossed with recessive pied to eventually create the beautiful dark eye clear variety. 2) No, a dominant pied cannot be bred from a pair of recessive pieds. In order to produce a dominant pied, or any other dominant variety for that matter, at least one of the members of the pair must be visually that variety and therefore in possession of at least one gene for the trait, to pass on to a chick. 3) True, all red eyed varieties are either recessive or sex-linked. 4) Yes, it is possible for a bird to be visually carrying the color gray, violet, dark factor, sex-linked, dominant and recessive traits all at once. As an example, a yellow face cinnamon gray violet mauve white or a opaline grey green violet olive clearwing. Many more combinations are possible and more than one of each type of trait can be present. Serious exhibitors would be wise to keep birds as pure as possible and try to limit the number of varieties that can be bred onto one bird. This is important in producing a specific variety, for improvement purposes and for exhibiting. 5) The answer is B. Presently, in late 2003, there are no green birds with white faces. 6) Dominant types would be the colors green, grey and violet and varieties such as normals, yellow face, dominant pieds (including the banded, non-banded and clearflight forms), crested, spangle and Easly clearbody. Recessive varieties are the color blue, clearwings, greywings, dilutes (also known as pastels, suffused or by their color names – yellow or white), harlequins, (recessive pieds) all fallows, black faces, fadeds, mottles and saddlebacks. The sex-linked types are opalines, cinnamons, lutinos and albinos (both referred to as inos) lacewings (cinnamon form of ino), slates and Texas clearbodies. 7) H and I Hens cannot be split for sex-linked traits. Sex-linked cocks result when a sex-linked hen and a sex-linked cock or a cock split for the same variety are mated.. 8) Masking is when varieties such as ino, DF spangle or dark eye clear act like a coat and prevent or block your ability to see the true visual varieties present underneath. 9) Spangle, dominant pied and yellow face change appearance as double factors. 10) The correct answer is B. A bird that is split (shown as /) has one gene for a recessive or sex-linked trait and is carrying it in a hidden or non-visible manner because for it to manifest itself visually, the bird would have to possess two genes for it. Information from Tri-State Budgerigar Society
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