The term epistasis is used to refer to a situation in which the expression of a gene is influenced by another independently inherited gene. In labs, the gene B determines how much pigment is made. The dominant allele B results in black fur and the recessive allele b results in brown (chocolate) fur. A separate gene, E, codes for a protein that determines whether the pigment is deposited in the hair. (E = pigment deposited; e = pigment not deposited). What genotypes are possible for a black lab? What genotypes are possible for a chocolate lab? What genotypes are possible for a yellow Lab? In a cross between a black lab that is homozygous for both alleles and a yellow lab that is homozygous for both alleles, what would the genotype and phenotype of the offspring be? Imagine you cross two heterozygous parents. What are the genotypic and phenotypic ratios of the offspring?

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Description: The term epistasis is used to refer to a situation in which the expression of a gene is influenced by another independently inherited gene. In labs, the gene B determines how much pigment is made. The dominant allele B results in black fur and the r

Epistasis is a phenomenon in genetics in which the effect of a gene mutation is dependent on the…

Answered: The term epistasis is used to refer to…

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

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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The term epistasis is used to refer to a situation in which the expression of a gene is influenced by another independently inherited gene. In labs, the gene B determines how much pigment is made. The dominant allele B results in black fur and the recessive allele b results in brown (chocolate) fur. A separate gene, E, codes for a protein that determines whether the pigment is deposited in the hair. (E = pigment deposited; e = pigment not deposited).

What genotypes are possible for a black lab?

What genotypes are possible for a chocolate lab?

What genotypes are possible for a yellow Lab?

In a cross between a black lab that is homozygous for both alleles and a yellow lab that is homozygous for both alleles, what would the genotype and phenotype of the offspring be?

Imagine you cross two heterozygous parents. What are the genotypic and phenotypic ratios of the offspring?

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