The mother’s genotype when the father is deaf, has a double recessive dd genotype, and all the children have hearing capability. Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

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Answer 1

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Features of a Concept Features of a Concept Characteristics are discrete; that is, they are unitary. Genetic features have alternative forms, and each feature is inherited from one of the two parents. These are called alleles. One allele is dominant over the other allele. The dominant allele is reflected in the phenotype. Random segregation creates the gametes. The heterozygotic individuals produce gametes with an equal frequency of both alleles. Genes are unlinked; that is, different traits arise from the independent assortment.

Chapter 9, Problem 19PS

Summary Introduction

To explain: The mother’s genotype when the father is deaf, has a double recessive dd genotype, and all the children have hearing capability.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Summary Introduction

To explain: The mother’s genotype if the couple has four children (non twins), and all have hearing capabilities.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Summary Introduction

To explain: The way in which the genotypes can be assigned.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

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As shown in the Punnett square below, one variety of deafness is caused by an autosomal recessive allele. Two parents who do not show any signs of the disease but are carriers could therefore have a child who is deaf, because that child could inherit one recessive deafness-causing gene from each parent. Imagine that a deaf male mates with a hearing female. We know the deaf male must have the genotype dd, but the female could be either Dd or DD. Such a mating is essentially a testcross, like the one shown in Figure 9.10. If the parents’ first child has hearing, can you say with certainty what the mother’s genotype must be? What if the couple has four children (none twins), all with hearing—can you say with certainty the mother’s genotype? What would it take for a definitive genotype to be assigned?

Can anyone explain the answer？draw the punnett square and step by step explaination please.

Red-green color blindness is inherited as a sex-linked recessive trait. The gene is found on the X chromosome. How can a man with normal color vision father a daughter who is red-green color-blind? Group of answer choices The man is heterozygous for red-green color blindness. The woman with whom he mates is red-green color-blind. He can't (unless there is a mutation). The man's mother carries an allele for red-green color blindness, and the expression of the trait skipped a generation.

Answer 2

Question

Features of a Concept Features of a Concept Characteristics are discrete; that is, they are unitary. Genetic features have alternative forms, and each feature is inherited from one of the two parents. These are called alleles. One allele is dominant over the other allele. The dominant allele is reflected in the phenotype. Random segregation creates the gametes. The heterozygotic individuals produce gametes with an equal frequency of both alleles. Genes are unlinked; that is, different traits arise from the independent assortment.

Chapter 9, Problem 19PS

Summary Introduction

To explain: The mother’s genotype when the father is deaf, has a double recessive dd genotype, and all the children have hearing capability.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Summary Introduction

To explain: The mother’s genotype if the couple has four children (non twins), and all have hearing capabilities.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Summary Introduction

To explain: The way in which the genotypes can be assigned.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

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Answer 3

Question

Features of a Concept Features of a Concept Characteristics are discrete; that is, they are unitary. Genetic features have alternative forms, and each feature is inherited from one of the two parents. These are called alleles. One allele is dominant over the other allele. The dominant allele is reflected in the phenotype. Random segregation creates the gametes. The heterozygotic individuals produce gametes with an equal frequency of both alleles. Genes are unlinked; that is, different traits arise from the independent assortment.

Chapter 9, Problem 19PS

Summary Introduction

To explain: The mother’s genotype when the father is deaf, has a double recessive dd genotype, and all the children have hearing capability.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Summary Introduction

To explain: The mother’s genotype if the couple has four children (non twins), and all have hearing capabilities.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Summary Introduction

To explain: The way in which the genotypes can be assigned.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

Question

Features of a Concept Features of a Concept Characteristics are discrete; that is, they are unitary. Genetic features have alternative forms, and each feature is inherited from one of the two parents. These are called alleles. One allele is dominant over the other allele. The dominant allele is reflected in the phenotype. Random segregation creates the gametes. The heterozygotic individuals produce gametes with an equal frequency of both alleles. Genes are unlinked; that is, different traits arise from the independent assortment.

Chapter 9, Problem 19PS

Summary Introduction

To explain: The mother’s genotype when the father is deaf, has a double recessive dd genotype, and all the children have hearing capability.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Summary Introduction

To explain: The mother’s genotype if the couple has four children (non twins), and all have hearing capabilities.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Summary Introduction

To explain: The way in which the genotypes can be assigned.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Expert Solution & Answer

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Answer 5

Chapter 9, Problem 19PS

Summary Introduction

To explain: The mother’s genotype when the father is deaf, has a double recessive dd genotype, and all the children have hearing capability.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Summary Introduction

To explain: The mother’s genotype if the couple has four children (non twins), and all have hearing capabilities.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Summary Introduction

To explain: The way in which the genotypes can be assigned.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Answer 6

Chapter 9, Problem 19PS

Summary Introduction

To explain: The mother’s genotype when the father is deaf, has a double recessive dd genotype, and all the children have hearing capability.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Answer 7

Chapter 9, Problem 19PS

Summary Introduction

To explain: The mother’s genotype when the father is deaf, has a double recessive dd genotype, and all the children have hearing capability.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Answer 8

Summary Introduction

To explain: The mother’s genotype if the couple has four children (non twins), and all have hearing capabilities.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Answer 9

Summary Introduction

To explain: The mother’s genotype if the couple has four children (non twins), and all have hearing capabilities.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Answer 10

Summary Introduction

To explain: The way in which the genotypes can be assigned.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Answer 11

Summary Introduction

To explain: The way in which the genotypes can be assigned.

Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.

Answer 12

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Answer 13

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Answer 15

Ch. 9 - The genetic makeup of an organism is called its...Ch. 9 - Which of Mendels laws is represented by each...Ch. 9 - Prob. 3SQ Ch. 9 - Prob. 4SQ Ch. 9 - Prob. 5SQ Ch. 9 - Prob. 6SQ Ch. 9 - Prob. 7SQ Ch. 9 - Prob. 8SQ Ch. 9 - Prob. 9SQ Ch. 9 - Prob. 10SQ

Solution Summary: The author explains that the mother's genotype is the allelic identity of the organism based on which the phenotype is expressed.

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