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tl ban o a rne dononant allo le dD), ifs dccessrveallele (h) produces aght bour Another gene has wo alclcs Cm) dork boir n dominant over (b) bionde, A woman ith wooly, blonde lour roarmesan with stranght, dark hai heir daughteT has straight, blonde t What phenorypes and in what proportions can they expcct among fture children? o H X h & 7. The color in Labrador retrievers is an example of epistasis. The two alleles for the pigment gene are: (B) for black coat and its recessive counterpart (b) for chocolate coat. A different autosomal gene affects the expression of color in the coat and has two alleles, (E), which allows the expression of color, and (e), which is epistatic and blocks the expression of the B/b gene. The epistatic allele is recessive and is only expressed as a yellow color in the homozygous condition (ee), regardless of the B and b genotypes. A completely homozygous black lab was mated to a yellow lab, homozygous for the chocolate allele. Their offspring will be the F1 generation. a) What are the genotypes and phenotypes of the F1 generation? b) What phenotypic ratios are expected in the F2 generation? Codter bee 3864 her Be Be Be Be 9:3:3.1 End Hu 9-23

tl ban o a rne dononant allo le dD), ifs dccessrveallele (h) produces aght bour Another gene has wo alclcs Cm) dork boir n dominant over (b) bionde, A woman ith wooly, blonde lour roarmesan with stranght, dark hai heir daughteT has straight, blonde t What phenorypes and in what proportions can they expcct among fture children? o H X h & 7. The color in Labrador retrievers is an example of epistasis. The two alleles for the pigment gene are: (B) for black coat and its recessive counterpart (b) for chocolate coat. A different autosomal gene affects the expression of color in the coat and has two alleles, (E), which allows the expression of color, and (e), which is epistatic and blocks the expression of the B/b gene. The epistatic allele is recessive and is only expressed as a yellow color in the homozygous condition (ee), regardless of the B and b genotypes. A completely homozygous black lab was mated to a yellow lab, homozygous for the chocolate allele. Their offspring will be the F1 generation. a) What are the genotypes and phenotypes of the F1 generation? b) What phenotypic ratios are expected in the F2 generation? Codter bee 3864 her Be Be Be Be 9:3:3.1 End Hu 9-23

Biology: The Unity and Diversity of Life (MindTap Course List)
Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN:9781337408332
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Chapter10: Control Of Gene Expression
Section: Chapter Questions
Problem 3CT
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tl ban o a rne dononant allo le dD), ifs dccessrveallele (h) produces aght bour Another gene has wo alclcs Cm) dork boir n dominant over (b) bionde, A woman ith wooly, blonde lour roarmesan with stranght, dark hai heir daughteT has straight, blonde t What phenorypes and in what proportions can they expcct among fture children? o H X h & 7. The color in Labrador retrievers is an example of epistasis. The two alleles for the pigment gene are: (B) for black coat and its recessive counterpart (b) for chocolate coat. A different autosomal gene affects the expression of color in the coat and has two alleles, (E), which allows the expression of color, and (e), which is epistatic and blocks the expression of the B/b gene. The epistatic allele is recessive and is only expressed as a yellow color in the homozygous condition (ee), regardless of the B and b genotypes. A completely homozygous black lab was mated to a yellow lab, homozygous for the chocolate allele. Their offspring will be the F1 generation. a) What are the genotypes and phenotypes of the F1 generation? b) What phenotypic ratios are expected in the F2 generation? Codter bee 3864 her Be Be Be Be 9:3:3.1 End Hu 9-23
Transcribed Image Text:tl ban o a rne dononant allo le dD), ifs dccessrveallele (h) produces aght bour Another gene has wo alclcs Cm) dork boir n dominant over (b) bionde, A woman ith wooly, blonde lour roarmesan with stranght, dark hai heir daughteT has straight, blonde t What phenorypes and in what proportions can they expcct among fture children? o H X h & 7. The color in Labrador retrievers is an example of epistasis. The two alleles for the pigment gene are: (B) for black coat and its recessive counterpart (b) for chocolate coat. A different autosomal gene affects the expression of color in the coat and has two alleles, (E), which allows the expression of color, and (e), which is epistatic and blocks the expression of the B/b gene. The epistatic allele is recessive and is only expressed as a yellow color in the homozygous condition (ee), regardless of the B and b genotypes. A completely homozygous black lab was mated to a yellow lab, homozygous for the chocolate allele. Their offspring will be the F1 generation. a) What are the genotypes and phenotypes of the F1 generation? b) What phenotypic ratios are expected in the F2 generation? Codter bee 3864 her Be Be Be Be 9:3:3.1 End Hu 9-23
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