Question

what proportion of the offspring are expected to be males with wild-type wings and white eyes"

Answer 1

Answer:

"Normal" inheritance (such as brown eye color, considered above) occurs for genes on the other chromosomes (called autosomes). ... The white-eye phenotype in Drosophila does occur in female flies. This observation rules out the possibility that the white gene might be on the Y chromosome.Because the male exhibits the dominant body color phenotype, you must cross it with a female with the homozygous recessive phenotype and genotype. Thus, the male fly is crossed with an ebony-bodied female of genotype ee.

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Answer 2

Answer:

Answer:-

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Linked genes are those genes which occur on the same chromosome while unlinked genes are the ones found on different chromosomes. Linked and unlinked genes can be easily known from breeding experiments. Unlinked genes show independent assortment, a di-hybrid ratio of 9: 3: 3: 1 and the di-hybrid or double test cross ratio of 1: 1: 1: 1 with two parental and two recombinant types.

The linked genes do not show independent assortment but remain together and are inherited en block producing only parental type of progeny. They give a di-hybrid ratio of 3: 1 and a test cross ratio of 1: 1.

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