a. To determine: The proportions of PD, NPD and T tetrads that are expected to be present in yeast. Introduction: The genotype of an organism is dependent on its genome and also on the environment of the organism. In some of the animals, it is not as typical as the genotype of the mother plays a crucial role. This type of effect is known as a maternal effect. The genes that participate in this are called maternal effect genes.

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Answer 1

Question

Chapter 5, Problem 44P

Summary Introduction

a.

To determine:

The proportions of PD, NPD and T tetrads that are expected to be present in yeast.

Introduction:

The genotype of an organism is dependent on its genome and also on the environment of the organism. In some of the animals, it is not as typical as the genotype of the mother plays a crucial role. This type of effect is known as a maternal effect. The genes that participate in this are called maternal effect genes.

Summary Introduction

b.

To determine:

The type and proportion of tetrads.

Introduction:

The genes are the sequence of nucleotides that are present on the chromosomes and encode for a specific protein that plays a crucial role in the functioning of the different processes in an organism. The gene is located at specific gene loci and can be structural or regulatory in nature.

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The following results are derived from crosses between Neurospora strain xy and strain ++: Tetrad Class 3 4 ху x+ x+ xy ++ ++ ++ +y +y ху +y 25 ++ 3 124 4 (i) Name the ascus type of each class from 1 to 4 as P, NP or T. (ii) Are genes x and y linked? Explain your answer. (iii) If they are linked, determine the map distance between the two genes. If they are unlinked, provide all the information you can about why you draw this conclusion.

Please label the tetrad type in the table as PD (parental ditype), NPD (non parental ditype) or T (tetratype) and answer the following questions a) Are the genes linked? Please explain SPECIFICALLY how you can distinguish between linked and unlinked genes in this instance. b) If the two genes are linked, calculate the % recombination between ser and thr. Show the formula used, as well as all of your calculations. c) Draw a single map illustrating the arrangement of the two genes on the chromosome with respect to each other and to the centromere of the chromosome. Make sure to map ALL three distances

A cross between yeast strains ab x AB produces the following unordered tetrads: a. Label each group of tetrads as parental ditypes (PD), non-parental ditypes (NPD), or tetratypes (T). AB AB ab ab 43 6 22 b. Are the genes linked or on separate chromosomes? Why? aB aB Ab Ab Ab AB ab aB c. If the genes are linked determine the distance between them.

Answer 2

Question

Chapter 5, Problem 44P

Summary Introduction

a.

To determine:

The proportions of PD, NPD and T tetrads that are expected to be present in yeast.

Introduction:

The genotype of an organism is dependent on its genome and also on the environment of the organism. In some of the animals, it is not as typical as the genotype of the mother plays a crucial role. This type of effect is known as a maternal effect. The genes that participate in this are called maternal effect genes.

Summary Introduction

b.

To determine:

The type and proportion of tetrads.

Introduction:

The genes are the sequence of nucleotides that are present on the chromosomes and encode for a specific protein that plays a crucial role in the functioning of the different processes in an organism. The gene is located at specific gene loci and can be structural or regulatory in nature.

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Answer 3

Question

Chapter 5, Problem 44P

Summary Introduction

a.

To determine:

The proportions of PD, NPD and T tetrads that are expected to be present in yeast.

Introduction:

The genotype of an organism is dependent on its genome and also on the environment of the organism. In some of the animals, it is not as typical as the genotype of the mother plays a crucial role. This type of effect is known as a maternal effect. The genes that participate in this are called maternal effect genes.

Summary Introduction

b.

To determine:

The type and proportion of tetrads.

Introduction:

The genes are the sequence of nucleotides that are present on the chromosomes and encode for a specific protein that plays a crucial role in the functioning of the different processes in an organism. The gene is located at specific gene loci and can be structural or regulatory in nature.

Expert Solution & Answer

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Answer 4

Question

Chapter 5, Problem 44P

Summary Introduction

a.

To determine:

The proportions of PD, NPD and T tetrads that are expected to be present in yeast.

Introduction:

The genotype of an organism is dependent on its genome and also on the environment of the organism. In some of the animals, it is not as typical as the genotype of the mother plays a crucial role. This type of effect is known as a maternal effect. The genes that participate in this are called maternal effect genes.

Summary Introduction

b.

To determine:

The type and proportion of tetrads.

Introduction:

The genes are the sequence of nucleotides that are present on the chromosomes and encode for a specific protein that plays a crucial role in the functioning of the different processes in an organism. The gene is located at specific gene loci and can be structural or regulatory in nature.

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Answer 5

Chapter 5, Problem 44P

Summary Introduction

a.

To determine:

The proportions of PD, NPD and T tetrads that are expected to be present in yeast.

Introduction:

The genotype of an organism is dependent on its genome and also on the environment of the organism. In some of the animals, it is not as typical as the genotype of the mother plays a crucial role. This type of effect is known as a maternal effect. The genes that participate in this are called maternal effect genes.

Summary Introduction

b.

To determine:

The type and proportion of tetrads.

Introduction:

The genes are the sequence of nucleotides that are present on the chromosomes and encode for a specific protein that plays a crucial role in the functioning of the different processes in an organism. The gene is located at specific gene loci and can be structural or regulatory in nature.

Answer 6

Chapter 5, Problem 44P

Summary Introduction

a.

To determine:

The proportions of PD, NPD and T tetrads that are expected to be present in yeast.

Introduction:

The genotype of an organism is dependent on its genome and also on the environment of the organism. In some of the animals, it is not as typical as the genotype of the mother plays a crucial role. This type of effect is known as a maternal effect. The genes that participate in this are called maternal effect genes.

Answer 7

Chapter 5, Problem 44P

Summary Introduction

a.

To determine:

The proportions of PD, NPD and T tetrads that are expected to be present in yeast.

Introduction:

The genotype of an organism is dependent on its genome and also on the environment of the organism. In some of the animals, it is not as typical as the genotype of the mother plays a crucial role. This type of effect is known as a maternal effect. The genes that participate in this are called maternal effect genes.

Answer 8

Summary Introduction

b.

To determine:

The type and proportion of tetrads.

Introduction:

The genes are the sequence of nucleotides that are present on the chromosomes and encode for a specific protein that plays a crucial role in the functioning of the different processes in an organism. The gene is located at specific gene loci and can be structural or regulatory in nature.

Answer 9

Summary Introduction

b.

To determine:

The type and proportion of tetrads.

Introduction:

The genes are the sequence of nucleotides that are present on the chromosomes and encode for a specific protein that plays a crucial role in the functioning of the different processes in an organism. The gene is located at specific gene loci and can be structural or regulatory in nature.

Answer 10

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Answer 11

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Answer 12

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Answer 13

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Solution Summary: The author explains that the genotype of an organism is dependent on its genome and also on the environment of the organism.

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