In owl, barring (B) is sex linked and dominant recessive allele (b) producing solid black color when homozygous. Silky feathers (s) is a recessive autosomal gene as opposed to non-silky (S). If black cocks, heterozygous for non-silky, are crossed to barred, silky hens, what genotype and phenotype will be produced? (Sex-linked genes can be written as XAXA for female and XAY for male since superscript function is not available) i. What is the genotype of the cock?________ (no spaces) ii. What are the possible genotypes of the hen?________, _______ (no spaces) iii. Write the genotype of the F1 when the hen is homozygous dominant for barring. _______, _________, ________, ________ (no spaces)
In owl, barring (B) is sex linked and dominant recessive allele (b) producing solid black color when homozygous. Silky feathers (s) is a recessive autosomal gene as opposed to non-silky (S). If black cocks, heterozygous for non-silky, are crossed to barred, silky hens, what genotype and
(Sex-linked genes can be written as XAXA for female and XAY for male since superscript function is not available)
i. What is the genotype of the cock?________ (no spaces)
ii. What are the possible genotypes of the hen?________, _______ (no spaces)
iii. Write the genotype of the F1 when the hen is homozygous dominant for barring. _______, _________, ________, ________ (no spaces)
iv. What is the phenotypic ratio?________ (no spaces, numbers only)
v. What is the genotypic ratio when the hen is heterozygous for barring?__________(no spaces, numbers only)
vi. How many female carriers are present when the hen is heterozygous for barring?_________(use fraction only)
it is for educational purpose only.
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