Genetics: A Conceptual Approach 6E w/ SaplingPlus (Six-Month Access)
Genetics: A Conceptual Approach 6E w/ SaplingPlus (Six-Month Access)
6th Edition
ISBN: 9781319125929
Author: Benjamin A. Pierce
Publisher: W. H. Freeman
Question
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Chapter 5.4, Problem 36AQP

a.

Summary Introduction

To determine:

The phenotype and it expected proportion for the cross B+BbWwmale×B+BbWwfemale

a.

Expert Solution
Check Mark

Explanation of Solution

B+BbWwmale×B+BbWwfemale

B+WB+wBbWBbw
B+WB+B+WWB+B+WwB+BbWWB+BbWw
B+wB+B+WwB+B+wwB+BbWwB+Bbww
BbWB+BbWWB+BbWwBbBbWWBbBbWw
BbwB+BbWwB+BbwwBbBbWwBbBbww

Phenotypic ration in goat male are given as follows;

Bearded and black: 9/16

Bearded and white: 3/16

Beardless and black: 3/16

Beardless and white: 1/16

Ratio of phenotype in male goat; 9:3:3:1

Phenotypic ration in goat female are given as follows;

Bearded and black: 3/16

Bearded and white: 1/16

Beardless and black: 9/16

Beardless and white: 3/16

Ratio of phenotype in female goat; 9:3:3:1

b.

Summary Introduction

To determine:

The phenotype and it expected proportion for the cross B+BbWwmale×B+Bbwwfemale

b.

Expert Solution
Check Mark

Explanation of Solution

B+BbWwmale×B+Bbwwfemale

B+WB+wBbWBbw
B+wB+B+WwB+B+wwB+BbWwB+Bbww
B+wB+B+WwB+B+wwB+BbWwB+Bbww
BbwB+BbWwB+BbwwBbBbWwBbBbww
BbwB+BbWwB+BbwwBbBbWwBbBbww

Phenotypic ration in goat male are given as follows;

Bearded and black : 6/16

Bearded and white : 6/16

Beardless and black : 2/16

Beardless and white: 2/16

Ratio of phenotype in male goat; 3:3:1:1

Phenotypic ration in goat female are given as follows;

Bearded and black : 6/16

Bearded and white : 6/16

Beardless and black : 2/16

Beardless and white: 2/16

Ratio of phenotype in female goat; 3:3:1:1

c.

Summary Introduction

To determine:

The phenotype and it expected proportion for the cross B+B+Wwmale×BbBbWwfemale

c.

Expert Solution
Check Mark

Explanation of Solution

B+B+Wwmale×BbBbWwfemale

B+WB+wB+WB+w
BbWB+BbWWB+BbwwB+BbWWB+BbWw
BbwB+BbWwB+BbwwB+BbWwB+Bbww
BbWB+BbWWB+BbWwB+BbWWB+BbWw
BbwB+BbWwB+BbwwB+BbWwB+Bbww

Phenotypic ration in goat male are given as follows;

Bearded and black: 12/16

Bearded and white: 4/16

Ratio of phenotype in male goat; 3:1

Phenotypic ration in goat female are given as follows;

Bearded and black: 12/16

Bearded and white: 4/16

Ratio of phenotype in female goat; 3:1

d.

Summary Introduction

To determine:

The phenotype and it expected proportion for the cross B+BbWwmale×BbBbwwfemale

d.

Expert Solution
Check Mark

Explanation of Solution

B+BbWwmale×BbBbwwfemale

B+WB+wBbWBbw
BbwB+BbWwB+BbwwBbBbWwBbBbww
BbwB+BbWwB+BbwwBbBbWwBbBbww
BbwB+BbWwB+BbwwBbBbWwBbBbww
BbwB+BbWwB+BbwwBbBbWwBbBbww

Phenotypic ration in goat male are given as follows;

Bearded and black: 8/16

Bearded and white: 8/16

Ratio of phenotype in male goat; 1:1

Phenotypic ration in goat female are given as follows;

Bearded and black: 4/16

Bearded and white: 4/16

Beardless and black: 4/16

Beardless and white: 4/16

Ratio of phenotype in female goat; 1:1:1:1

Conclusion

The expected proportion for the crosses; B+BbWwmale×B+BbWwfemale; is in male goat 9:3:3:1 and in female goat is 9:3:3:1: in cross B+BbWwmale×B+Bbwwfemale ; in male goat is 3:3:1:1, in female goat is 3:3:1:1: in cross B+B+Wwmale×BbBbWwfemale; in male goat is 3:1 and in female goat is 3:1, and  in cross B+BbWwmale×BbBbwwfemale; in male goat is 1:1 in female goat is 1:1:1:1 .

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