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Question
The allele for long tail feathers (T) shows dominance over the allele for short tail feathers (t) in pheasants. In a cross between pure line long-tailed pheasant (TT) and a pure line short-tailed (tt) pheasant, the percentage of offsprings that produces pheasants with short tails would be
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Solution
The correct option is D 0%
According to the question, long tail feather (T) is dominant over short tail (t), hence the cross between pure breeding long tail (TT) and short tail (tt) pheasant will give all heterozygous dominant progeny (Tt). Hence all pheasants will have long tail feathers and the percentage of offsprings that produces pheasants with short tails would be 0%. Thus the correct answer is option D.
According to the question, long tail feather (T) is dominant over short tail (t), hence the cross between pure breeding long tail (TT) and short tail (tt) pheasant will give all heterozygous dominant progeny (Tt). Hence all pheasants will have long tail feathers and the percentage of offsprings that produces pheasants with short tails would be 0%. Thus the correct answer is option D.
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