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 38AQP

a.

Summary Introduction

To determine:

The possible genotypes of both tan father and mother with 78 red females, 70 white females and 184 tan males offsprings.

b.

Summary Introduction

To determine:

The possible genotypes of tan father and black mother with 151 red females, 49 black females, 61 tan females and 249 tan males offsprings.

c.

Summary Introduction

To determine:

The possible genotypes of tan father and white mother with 32 red females and 31 tan males offsprings.

d.

Summary Introduction

To determine:

The possible genotypes of tan father and black mother with 3586 black females, 1282 tan females and 4791 tan males offsprings.

e.

Summary Introduction

To determine:

The possible genotypes of tan father and white mother with 594 white females, 189 tan females and 862 tan males offsprings.

f.

Summary Introduction

To determine:

The possible genotypes of tan father and black mother with 88 black females, 88 tan females and 186 tan males offsprings.

g.

Summary Introduction

To determine:

The possible genotypes of both tan father and mother with 47 white females, 51 tan females and 100 tan males offsprings.

h.

Summary Introduction

To determine:

The possible genotypes of tan father and red mother with 1932 red females, 592 tan females and 2587 tan males offsprings.

i.

Summary Introduction

To determine:

The possible genotypes of tan father and white mother with 13 red females, 06 white females, 05 tan females and 19 tan males offsprings.

j.

Summary Introduction

To determine:

The possible genotypes of tan father and red mother with 190 red females, 196 black females and 311 tan males offsprings.

k.

Summary Introduction

To determine:

The possible genotypes of tan father and black mother with 1412 black females, 502 white females and 1766 tan males offsprings.

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Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…
Question #5: Assume that two genes are identified that confer gametophytic facultative apomixis in soybean. The genes show independent assortment. Recessive alleles at both loci are required for the facultative apomixis. Facultative apomixis is triggered when the temperature at pollination is above 20 degrees C. At temperatures below 20 degrees C, all reproduction is sexual, independent of genotype. A facultative apomict male, capable of producing viable pollen, was crossed with a sexually reproducing female. Assuming the parents are completely inbred, what are the predicted phenotypic ratios (apomict: non-apomict) for the F1, F2, and DH (F1-derived) generations at each of the following temperatures*: a) 15°C? b) 25°C? *for full credit, show crosses and genotypes where appropriate. Remember to position the female first (left side) in the cross. Type your answer here:
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