Campbell Biology in Focus (2nd Edition)
Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 11, Problem 16TYU

(a)

Summary Introduction

To determine:

(a) All the possible genotype of mystery pea plant. (b) The cross that can be done to determine the exact genotype.(c) The way in which prediction can be done for the possible genotype and why that method is not called performing a cross. (d) The way in which the result of the cross and the prediction will help in determining the genotype of the mystery plant.

Introduction:

Genotype is the genetic makeup of an organism based on single or multiple traits. It helps in deciphering the type of progeny that would be observed in the future generations. The genotype determines the phenotype of the organism and there can be dominant and recessive genes in the genotype. Dominant genes are those genes that are expressed in the heterozygous state and the recessive genes are those that are not expressed in the heterozygous state.

To determine: All the possible genotype of a mystery pea plant.

(b)

Summary Introduction

To determine:

The cross that can be done to determine the exact genotype.

(c)

Summary Introduction

To determine:

The way in which prediction can be done for the possible genotype and why that method is not called “performing a cross”.

(d)

Summary Introduction

To determine:

The way in which the result of the cross and the prediction will help in determining the genotype of the mystery plant.

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Students have asked these similar questions
a. State a hypothesis explaining the inheritance of flower color in painted tongues. b. Assign genotypes to the parents, F₁ progeny, and F2 progeny for all five crosses. c. In a cross between true-breeding yellow and true-breeding lavender plants, all of the F1 progeny are bronze. If you used F₁ plants to produce and F2 generation, what phenotypes in what ratios would you expect? Are there any genotypes that might produce a phenotype that you cannot predict from earlier experiments, and if so, how might this alter the phenotypic ratios among the F2 progeny?
Let's do one more monohybrid cross. Suppose these is a gene in chickens that controls whether their eggs will be brown or white. Assuming that brown eggs (B) are dominant to white eggs (b), what are all of the phenotypes that would result from a cross between two chickens that are heterozygous for laying brown eggs? To get full credit for this question you will need to:a) List the parental genotypes and phenotypes.b) List the gametes produced by each parent.c) Do a punnet square. You can do this by inserting a 3x3 table. This tool can be found by clicking the waffle shaped icon under the bold "B" on the commands ribbon at the top of your answer box.d) List all of the possible genotype and phenotypes from the cross with numbers.
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