Why calico cats are almost female. Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

Question

Suppose that the population from question #1 (data is in table below) is experiencing inbreeding depression (F=.25) (and no longer experiencing natural selection). Calculate the new expected genotype frequencies (f) in this population after one round of inbreeding. Please round to 3 decimal places. Genotype Adh Adh Number of Flies 595 Adh Adh 310 Adhs Adhs 95 Total 1000 fladh Adh- flAdn Adh fAdhs Adh

Answer 1

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Chapter 10, Problem 3CT

A.

Summary Introduction

To determine: Why calico cats are almost female.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

B.

Summary Introduction

To determine: Why the calico cats are rare and sterile.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

C.

Summary Introduction

To propose: A mechanism that would give rise to the white fur.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

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Suppose that the population from question #1 (data is in table below) is experiencing inbreeding depression (F=.25) (and no longer experiencing natural selection). Calculate the new expected genotype frequencies (f) in this population after one round of inbreeding. Please round to 3 decimal places. Genotype Adh Adh Number of Flies 595 Adh Adh 310 Adhs Adhs 95 Total 1000 fladh Adh- flAdn Adh fAdhs Adh

Which of the following best describes why it is difficult to develop antiviral drugs? Explain why. A. antiviral drugs are very difficult to develop andhave no side effects B. viruses are difficult to target because they usethe host cell’s enzymes and ribosomes tometabolize and replicate C. viruses are too small to be targeted by drugs D. viral infections usually clear up on their ownwith no problems

This question has 3 parts (A, B, & C), and is under the subject of Nutrition. Thank you!

Answer 2

Question

100%

Chapter 10, Problem 3CT

A.

Summary Introduction

To determine: Why calico cats are almost female.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

B.

Summary Introduction

To determine: Why the calico cats are rare and sterile.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

C.

Summary Introduction

To propose: A mechanism that would give rise to the white fur.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

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Answer 3

Question

100%

Chapter 10, Problem 3CT

A.

Summary Introduction

To determine: Why calico cats are almost female.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

B.

Summary Introduction

To determine: Why the calico cats are rare and sterile.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

C.

Summary Introduction

To propose: A mechanism that would give rise to the white fur.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

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Answer 4

Question

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Chapter 10, Problem 3CT

A.

Summary Introduction

To determine: Why calico cats are almost female.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

B.

Summary Introduction

To determine: Why the calico cats are rare and sterile.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

C.

Summary Introduction

To propose: A mechanism that would give rise to the white fur.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

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Answer 5

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Answer 6

Question

100%

Answer 7

Chapter 10, Problem 3CT

A.

Summary Introduction

To determine: Why calico cats are almost female.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

B.

Summary Introduction

To determine: Why the calico cats are rare and sterile.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

C.

Summary Introduction

To propose: A mechanism that would give rise to the white fur.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

Answer 8

Chapter 10, Problem 3CT

A.

Summary Introduction

To determine: Why calico cats are almost female.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

Answer 9

Chapter 10, Problem 3CT

A.

Summary Introduction

To determine: Why calico cats are almost female.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

Answer 10

B.

Summary Introduction

To determine: Why the calico cats are rare and sterile.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

Answer 11

B.

Summary Introduction

To determine: Why the calico cats are rare and sterile.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

Answer 12

C.

Summary Introduction

To propose: A mechanism that would give rise to the white fur.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

Answer 13

C.

Summary Introduction

To propose: A mechanism that would give rise to the white fur.

Concept introduction: Some of the cats are white with patches of two colors (usually black and orange). Such cats are called as calico cats. The coat colors in them are determined and are associated with the X chromosomes. Most of the calico cats are females. One of their color coats is determined by the maternal X chromosome and the other with the paternal X chromosome. Males are rare as they have only one sex chromosome and mostly the males are often sterile.

Answer 14

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