In horses, there are four alleles at the A locus. Arranged in dominance sequence, they are A (wild), gb (bay), a (brown), (black) If you bred several bay mares whose sires were brown to a brown stallion whose sire was black, what are the genotypes of the parents; what type of offspring would be produced; and in what proportion? O a Aab x a ad; all wild O b. gdab x a°ad; all black O C. gaad x a°ad, 1/2 brown, 1/2 black O d. Aab x acad; 1/2 bay, 1/2 wild O e. abac x acad; 1/2 bay, 1/2 brown

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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In horses, there are four alleles at the A locus. Arranged in dominance sequence, they are
A (wild),
ab
(bay), a (brown), ad
(black)
If you bred several bay mares whose sires were brown to a brown stallion whose sire was black, what are the genotypes of the parents; what type of offspring
would be produced; and in what proportion?
O a. Aab x aºad; all wild
O b.adab x a^ad, all black
O C. aaad x acad, 1/2 brown, 1/2 black
O d. Aab x acad; 1/2 bay, 1/2 wild
O e. bac x acad; 1/2 bay, 1/2 brown
Transcribed Image Text:In horses, there are four alleles at the A locus. Arranged in dominance sequence, they are A (wild), ab (bay), a (brown), ad (black) If you bred several bay mares whose sires were brown to a brown stallion whose sire was black, what are the genotypes of the parents; what type of offspring would be produced; and in what proportion? O a. Aab x aºad; all wild O b.adab x a^ad, all black O C. aaad x acad, 1/2 brown, 1/2 black O d. Aab x acad; 1/2 bay, 1/2 wild O e. bac x acad; 1/2 bay, 1/2 brown
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