Assume that the above trait for eye color was Z-Iinked in chicken. What are the

Question

Assume that the above trait for eye color was Z-Iinked in chicken. What are the expected offspring phenotypes if white eyed females are bred to red-eyed males? What are the expected offspring phenotypes if a reciprocal cross is performed? Determine the sequence of genes along a chromosome based on the following recombination frequencies Genes M and N are on the same chromosome and are 50 map units apart. An Individual heterorygous for both loci is crossed with one that is homozygous recessive at both loci. What percentage of offspring will show recombinant phenotypes (i.e., recombination frequency) resulting from crossing over?

Explanation / Answer

7. Alleles M and N are 50map units apart, means, the gametes will be 50% recombinant and 50% parental. Cross between heterozygous (MmNn) and homozygous recessive (mmnn) will have the offspring with 50% recombinant genotype and 50% parental genotype.

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