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Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052

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BuyFindarrow_forward

Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052
Chapter 3, Problem 2QP
Textbook Problem
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Crossing Pea Plants: Mendel’s Study of Single Traits

Of the following, which are phenotypes and which are

genotypes?

  1. a. Aa
  2. b. tall plants
  3. c. BB
  4. d. abnormal cell shape
  5. e. AaBb

a.

Summary Introduction

To determine: “Aa” as genotype or phenotype.

Introduction: The genotype is the genetic constitution of the organism while the phenotype refers to external characters visible in an organism.

Explanation of Solution

“Aa” is the genotype as it indicates the presence of two different types of alleles. The capital letter “A” denotes the dominant allele “AA” and the sm...

b.

Summary Introduction

To determine: “Tall plants” as genotype or phenotype.

Introduction: The genotype of an organism is not visible while the phenotype constitutes the visible characters of an organism.

c.

Summary Introduction

To determine: “BB” as phenotype or genotype.

Introduction: The genotype gives information about the genetic constitution of the organism while the phenotype refers to the external appearance that is visible in an organism.

c.

Summary Introduction

To determine: Whether “abnormal cell shape” is a genotype or a phenotype.

Introduction: The genes control various characters in an organism. The genes are present as two contrasting forms that are dominant and recessive. The phenotype of the organism is the consequence of the type of alleles inherited by the organism.

d.

Summary Introduction

To determine: Whether “AaBb” is a genotype or phenotype.

Introduction: When the alleles inherited by the zygote are same then the genotype of the individual is called homozygous whereas, when the zygote inherits two different alleles it is called heterozygote.

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Chapter 3 Solutions

Human Heredity: Principles and Issues (MindTap Course List)
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Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - Meiosis Explains Mendels Results: Genes Are on...Ch. 3 - Meiosis Explains Mendels Results: Genes Are on...Ch. 3 - Meiosis Explains Mendels Results: Genes Are on...Ch. 3 - Meiosis Explains Mendels Results: Genes Are on...Ch. 3 - Meiosis Explains Mendels Results: Genes Are on...Ch. 3 - Variations on a Theme by Mendel A characteristic...Ch. 3 - Meiosis Explains Mendels Results: Genes Are on...Ch. 3 - Variations on a Theme by Mendel Pea plants usually...Ch. 3 - Variations on a Theme by Mendel A plant geneticist...Ch. 3 - Variations on a Theme by Mendel What are the...Ch. 3 - Meiosis Explains Mendels Results: Genes Are on...Ch. 3 - Variations on a Theme by Mendel What is the chance...Ch. 3 - Variations on a Theme by Mendel A hypothetical...Ch. 3 - Variations on a Theme by Mendel In homozygotes,...

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