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kifflom [539]
3 years ago
9

An alien race known as the Wombatian Wilburys has the same genetic structure as humans (i.e., same genomes). Interestingly, the

Wombatian Wilburys enjoy much of the same food as humans. Two autosomal genes are of interest:Chicken, with alleles: W = White-meat lover (dominant) and w = dark-meat lover (recessive).Potato, with alleles: M = Mashed potato lover (dominant) and m = baked potato lover (recessive).Consider a parental cross of a true-breeding White-meat loving, Mashed potato loving male with a true-breeding Dark-meat loving, Baked-potato loving female. The F1 females produced by this cross are mated with Dark-meat loving, Baked-potato loving males in a test cross. The progeny resulting from the test cross are listed below.Table 1. Counts of genotypes from F1 crossGenotype CountW-M 258W-m 259w-M 261w-m 259Are these genes linked? Recall, linked means that the distance is less than 50 centimorgans, tightly linked means that the distance is close to 0, and unlinked means that the distance is 50 centimorgans or more.A. No.B. They are on the same sex chromosome.C. The question cannot be determined from the information given.D. Yes.E. They are on the same autosome and tightly linked.
Biology
1 answer:
lidiya [134]3 years ago
3 0

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If the female is a carrier for the x-linked trait for colorblindness, and the male is colorblind, what percentage of their daugh
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The inheritance of eye color in Drosophila is controlled by genes on each of the fly's four chromosome pairs. One eye-color gene
algol [13]

Answer:

F1 Females  - all wild type

F1 Males  - all wild type

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F2 Males - 1/2 wild type, 1/2 vermilion

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The wild-type allele (Xᵛ⁺) is dominant over vermilion (Xᵛ), which is a sex-linked trait.

Female flies have two X chromosomes, male flies have one X and one Y chromosome.

A homozygous wild-type female fly (Xᵛ⁺Xᵛ⁺) is mated with a vermilion male fly (XᵛY).

The female parent can only produce Xᵛ⁺ gametes.

The male parent can produce either Xᵛ or Y gametes.

When gametes from both parents fuse, the F1 offspring will have the genotypes Xᵛ⁺Xᵛ (females with wild type eyes) and Xᵛ⁺Y (males with wild type eyes).

The F1 females can produce Xᵛ⁺ and Xᵛ gametes. The F1 males can produce Xᵛ⁺ and Y gametes.

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