The type of plumage found in mallard ducks is determined by three alleles at a single locus: MR, which encodes restricted lumage; M, which encodes mallard plumage; and md which encodes dusky plumage. The restricted phenotype is dominant over nallard and dusky; mallard is dominant over dusky (MR>M>md). If a duck with the restricted phenotype mates with a mallard ype and their offspring ratios are ½ restricted, 4 mallard and 4 dusky, then what is genotype of the parents? O MR M x M md O MR MR X M md O MR md x M md O MR md x M M 2 Impossible to determine from information provided

Human Anatomy & Physiology (11th Edition)
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ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
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The type of plumage found in mallard ducks is determined by three alleles at a single locus: MR, which encodes restricted
plumage; M, which encodes mallard plumage; and md which encodes dusky plumage. The restricted phenotype is dominant over
mallard and dusky; mallard is dominant over dusky (MR>M>md). If a duck with the restricted phenotype mates with a mallard
type and their offspring ratios are 2 restricted, 4 mallard and 4 dusky, then what is genotype of the parents?
O MR M x M md
O MR MR x M md
O MR md x M md
O MR md x M M
O Impossible to determine from information provided
Transcribed Image Text:The type of plumage found in mallard ducks is determined by three alleles at a single locus: MR, which encodes restricted plumage; M, which encodes mallard plumage; and md which encodes dusky plumage. The restricted phenotype is dominant over mallard and dusky; mallard is dominant over dusky (MR>M>md). If a duck with the restricted phenotype mates with a mallard type and their offspring ratios are 2 restricted, 4 mallard and 4 dusky, then what is genotype of the parents? O MR M x M md O MR MR x M md O MR md x M md O MR md x M M O Impossible to determine from information provided
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