4. In owl, barring (B) is sex-linked and dominant, the 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 genotypes and phenotypes 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) ii. Write the genotypes of the F1 when the hen is homozygous dominant for barring (No Spaces)

4. In owl, barring (B) is sex-linked and dominant, the 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 genotypes and phenotypes 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) ii. Write the genotypes of the F1 when the hen is homozygous dominant for barring (No Spaces)

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter12: Mendel, Genes, And Inheritance

Section: Chapter Questions

Problem 6TYK

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In cats, the genotype AA produces tabby fur color; Aa is also a tabby, and aa is black. Another gene at a different locus is epistatic to the gene for fur color. When present in its dominant W form (WW or Ww), this gene blocks the formation of fur color and all the offspring are white; ww individuals develop normal fur color. What fur colors, and in what proportions, would you expect from the cross AaWw Aa Ww?
Imagine you are performing a cross involving seed color in garden pea plants. What Fi offspring would you expect if you cross true-breeding parents with green seeds and yellow seeds? Yellow seed color is dominant over green. 100 percent yellow-green seeds 100 percent yellow seeds 50 percent yellow, 50 percent green seeds 25 percent green, 75 percent yellow seeds
In peas, the allele Le produces tall plants and the allele le produces dwarf plants. The Le allele is dominant to le. If a tall plant is crossed with a dwarf, the offspring are distributed about equally between tall and dwarf plants. What are the genotypes of the parents?
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