Question 8 Listen In Labrador dogs, there are 2 genes that determine coat color. One gene has a recessive allele (e) which, when homozygous, results in a yellow dog regardless of what the genotype of the dog is at the second gene. However, if there is at least one E allele, the phenotype of the dog will depend on a second gene B. Dogs that are EE, or Ee and BB or Bb will be black. Dogs that are EE or Ee and bb will be chocolate. A dog that is Ee, Bb has offspring with a dog that is Ee, bb. What is the chance that they have an offspring which is black? A) 3/4 B) 1/2 C) 3/8 D) O E) 1/4 F) 1/8

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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In Labrador dogs, there are 2 genes that determine coat color. One gene has a
recessive allele (e) which, when homozygous, results in a yellow dog regardless of
what the genotype of the dog is at the second gene. However, if there is at least one
E allele, the phenotype of the dog will depend on a second gene B. Dogs that are EE,
or Ee and BB or Bb will be black. Dogs that are EE or Ee and bb will be chocolate. A
dog that is Ee, Bb has offspring with a dog that is Ee, bb. What is the chance that
they have an offspring which is black?
A) 3/4
B) 1/2
C) 3/8
D) O
E) 1/4
F) 1/8
Transcribed Image Text:Question 8 Listen In Labrador dogs, there are 2 genes that determine coat color. One gene has a recessive allele (e) which, when homozygous, results in a yellow dog regardless of what the genotype of the dog is at the second gene. However, if there is at least one E allele, the phenotype of the dog will depend on a second gene B. Dogs that are EE, or Ee and BB or Bb will be black. Dogs that are EE or Ee and bb will be chocolate. A dog that is Ee, Bb has offspring with a dog that is Ee, bb. What is the chance that they have an offspring which is black? A) 3/4 B) 1/2 C) 3/8 D) O E) 1/4 F) 1/8
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