With the initial appearance of the feature we call “Now Solve This,” a short introduction is in order. The feature occurs several times in this and all ensuing chapters, each time providing a problem related to the discussion just presented. A “Hint” is then offered that may help you solve the problem. Here is the first problem: (a) If an organism has a diploid number of 16, how many chromatids are visible at the end of mitotic prophase? (b) How many chromosomes are moving to each pole during anaphase of mitosis?

Question

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Answer 1

Textbook Question

Chapter 2, Problem 1NST

With the initial appearance of the feature we call “Now Solve This,” a short introduction is in order. The feature occurs several times in this and all ensuing chapters, each time providing a problem related to the discussion just presented. A “Hint” is then offered that may help you solve the problem. Here is the first problem:

(a) If an organism has a diploid number of 16, how many chromatids are visible at the end of mitotic prophase?
(b) How many chromosomes are moving to each pole during anaphase of mitosis?

(a)

Expert Solution

Summary Introduction

To determine: The number of chromatids that are visible at the end of prophase stage of mitosis.

Introduction: Mitosis is a process of division in which two daughter cells produce, and each daughter cell has the same complement of chromosomes as the parent cell.

Explanation of Solution

Prophase is the first stage of mitosis. In this stage, chromatin fibers start to condense, and nuclear envelope disappears, and centrioles divide. As chromatin fibers condense, the thread-like structures, the chromosomes, become visible.

It becomes apparent near the end of prophase that each chromosome consists of two parts, which are called sister chromatids. For example, if an organism has diploid number of 16 chromosomes, 32 chromatids would be visible at the end of mitotic prophase.

(b)

Expert Solution

Summary Introduction

To determine: The number of chromosomes that move towards the opposite poles during anaphase.

Introduction: Mitosis is divided into several stages: prophase, prometaphase, metaphase, anaphase, and telophase.

Explanation of Solution

In metaphase, the homologous chromosomes duplicate. Anaphase is the shortest stage of mitosis. The events critical to chromosome distribution occur during this stage. In this stage, sister chromatids of each chromosome disjoin from one other and are pulled towards opposite ends. This event is described as disjunction. If an organism has a diploid number of 16 chromosomes, 16 chromosomes will move towards the opposite poles during anaphase.

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07:18

Students have asked these similar questions

We will be starting a group project next week where you and your group will research and ultimately present on a current research article related to the biology of a pathogen that infects humans. The article could be about the pathogen itself, the disease process related to the pathogen, the immune response to the pathogen, vaccines or treatments that affect the pathogen, or other biology-related study about the pathogen. I recommend that you choose a pathogen that is currently interesting to researchers, so that you will be able to find plenty of articles about it. Avoid choosing a historical disease that no longer circulates. List 3 possible pathogens or diseases that you might want to do for your group project.

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Answer 2

Textbook Question

Chapter 2, Problem 1NST

With the initial appearance of the feature we call “Now Solve This,” a short introduction is in order. The feature occurs several times in this and all ensuing chapters, each time providing a problem related to the discussion just presented. A “Hint” is then offered that may help you solve the problem. Here is the first problem:

(a) If an organism has a diploid number of 16, how many chromatids are visible at the end of mitotic prophase?
(b) How many chromosomes are moving to each pole during anaphase of mitosis?

(a)

Expert Solution

Summary Introduction

To determine: The number of chromatids that are visible at the end of prophase stage of mitosis.

Introduction: Mitosis is a process of division in which two daughter cells produce, and each daughter cell has the same complement of chromosomes as the parent cell.

Explanation of Solution

Prophase is the first stage of mitosis. In this stage, chromatin fibers start to condense, and nuclear envelope disappears, and centrioles divide. As chromatin fibers condense, the thread-like structures, the chromosomes, become visible.

It becomes apparent near the end of prophase that each chromosome consists of two parts, which are called sister chromatids. For example, if an organism has diploid number of 16 chromosomes, 32 chromatids would be visible at the end of mitotic prophase.

(b)

Expert Solution

Summary Introduction

To determine: The number of chromosomes that move towards the opposite poles during anaphase.

Introduction: Mitosis is divided into several stages: prophase, prometaphase, metaphase, anaphase, and telophase.

Explanation of Solution

In metaphase, the homologous chromosomes duplicate. Anaphase is the shortest stage of mitosis. The events critical to chromosome distribution occur during this stage. In this stage, sister chromatids of each chromosome disjoin from one other and are pulled towards opposite ends. This event is described as disjunction. If an organism has a diploid number of 16 chromosomes, 16 chromosomes will move towards the opposite poles during anaphase.

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07:18

Answer 3

Textbook Question

Chapter 2, Problem 1NST

With the initial appearance of the feature we call “Now Solve This,” a short introduction is in order. The feature occurs several times in this and all ensuing chapters, each time providing a problem related to the discussion just presented. A “Hint” is then offered that may help you solve the problem. Here is the first problem:

(a) If an organism has a diploid number of 16, how many chromatids are visible at the end of mitotic prophase?
(b) How many chromosomes are moving to each pole during anaphase of mitosis?

(a)

Expert Solution

Summary Introduction

To determine: The number of chromatids that are visible at the end of prophase stage of mitosis.

Introduction: Mitosis is a process of division in which two daughter cells produce, and each daughter cell has the same complement of chromosomes as the parent cell.

Explanation of Solution

Prophase is the first stage of mitosis. In this stage, chromatin fibers start to condense, and nuclear envelope disappears, and centrioles divide. As chromatin fibers condense, the thread-like structures, the chromosomes, become visible.

It becomes apparent near the end of prophase that each chromosome consists of two parts, which are called sister chromatids. For example, if an organism has diploid number of 16 chromosomes, 32 chromatids would be visible at the end of mitotic prophase.

(b)

Expert Solution

Summary Introduction

To determine: The number of chromosomes that move towards the opposite poles during anaphase.

Introduction: Mitosis is divided into several stages: prophase, prometaphase, metaphase, anaphase, and telophase.

Explanation of Solution

In metaphase, the homologous chromosomes duplicate. Anaphase is the shortest stage of mitosis. The events critical to chromosome distribution occur during this stage. In this stage, sister chromatids of each chromosome disjoin from one other and are pulled towards opposite ends. This event is described as disjunction. If an organism has a diploid number of 16 chromosomes, 16 chromosomes will move towards the opposite poles during anaphase.

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07:18

Answer 4

Textbook Question

Chapter 2, Problem 1NST

With the initial appearance of the feature we call “Now Solve This,” a short introduction is in order. The feature occurs several times in this and all ensuing chapters, each time providing a problem related to the discussion just presented. A “Hint” is then offered that may help you solve the problem. Here is the first problem:

(a) If an organism has a diploid number of 16, how many chromatids are visible at the end of mitotic prophase?
(b) How many chromosomes are moving to each pole during anaphase of mitosis?

(a)

Expert Solution

Summary Introduction

To determine: The number of chromatids that are visible at the end of prophase stage of mitosis.

Introduction: Mitosis is a process of division in which two daughter cells produce, and each daughter cell has the same complement of chromosomes as the parent cell.

Explanation of Solution

Prophase is the first stage of mitosis. In this stage, chromatin fibers start to condense, and nuclear envelope disappears, and centrioles divide. As chromatin fibers condense, the thread-like structures, the chromosomes, become visible.

It becomes apparent near the end of prophase that each chromosome consists of two parts, which are called sister chromatids. For example, if an organism has diploid number of 16 chromosomes, 32 chromatids would be visible at the end of mitotic prophase.

(b)

Expert Solution

Summary Introduction

To determine: The number of chromosomes that move towards the opposite poles during anaphase.

Introduction: Mitosis is divided into several stages: prophase, prometaphase, metaphase, anaphase, and telophase.

Explanation of Solution

In metaphase, the homologous chromosomes duplicate. Anaphase is the shortest stage of mitosis. The events critical to chromosome distribution occur during this stage. In this stage, sister chromatids of each chromosome disjoin from one other and are pulled towards opposite ends. This event is described as disjunction. If an organism has a diploid number of 16 chromosomes, 16 chromosomes will move towards the opposite poles during anaphase.

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07:18

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

(a)

Expert Solution

Summary Introduction

To determine: The number of chromatids that are visible at the end of prophase stage of mitosis.

Introduction: Mitosis is a process of division in which two daughter cells produce, and each daughter cell has the same complement of chromosomes as the parent cell.

Explanation of Solution

Prophase is the first stage of mitosis. In this stage, chromatin fibers start to condense, and nuclear envelope disappears, and centrioles divide. As chromatin fibers condense, the thread-like structures, the chromosomes, become visible.

It becomes apparent near the end of prophase that each chromosome consists of two parts, which are called sister chromatids. For example, if an organism has diploid number of 16 chromosomes, 32 chromatids would be visible at the end of mitotic prophase.

(b)

Expert Solution

Summary Introduction

To determine: The number of chromosomes that move towards the opposite poles during anaphase.

Introduction: Mitosis is divided into several stages: prophase, prometaphase, metaphase, anaphase, and telophase.

Explanation of Solution

In metaphase, the homologous chromosomes duplicate. Anaphase is the shortest stage of mitosis. The events critical to chromosome distribution occur during this stage. In this stage, sister chromatids of each chromosome disjoin from one other and are pulled towards opposite ends. This event is described as disjunction. If an organism has a diploid number of 16 chromosomes, 16 chromosomes will move towards the opposite poles during anaphase.

Answer 8

(a)

Expert Solution

Summary Introduction

To determine: The number of chromatids that are visible at the end of prophase stage of mitosis.

Introduction: Mitosis is a process of division in which two daughter cells produce, and each daughter cell has the same complement of chromosomes as the parent cell.

Explanation of Solution

Prophase is the first stage of mitosis. In this stage, chromatin fibers start to condense, and nuclear envelope disappears, and centrioles divide. As chromatin fibers condense, the thread-like structures, the chromosomes, become visible.

It becomes apparent near the end of prophase that each chromosome consists of two parts, which are called sister chromatids. For example, if an organism has diploid number of 16 chromosomes, 32 chromatids would be visible at the end of mitotic prophase.

Answer 9

(a)

Expert Solution

Answer 10

(a)

Expert Solution

Answer 11

Expert Solution

Answer 12

Summary Introduction

To determine: The number of chromatids that are visible at the end of prophase stage of mitosis.

Introduction: Mitosis is a process of division in which two daughter cells produce, and each daughter cell has the same complement of chromosomes as the parent cell.

Answer 13

Explanation of Solution

Prophase is the first stage of mitosis. In this stage, chromatin fibers start to condense, and nuclear envelope disappears, and centrioles divide. As chromatin fibers condense, the thread-like structures, the chromosomes, become visible.

It becomes apparent near the end of prophase that each chromosome consists of two parts, which are called sister chromatids. For example, if an organism has diploid number of 16 chromosomes, 32 chromatids would be visible at the end of mitotic prophase.

Answer 14

(b)

Expert Solution

Summary Introduction

To determine: The number of chromosomes that move towards the opposite poles during anaphase.

Introduction: Mitosis is divided into several stages: prophase, prometaphase, metaphase, anaphase, and telophase.

Explanation of Solution

In metaphase, the homologous chromosomes duplicate. Anaphase is the shortest stage of mitosis. The events critical to chromosome distribution occur during this stage. In this stage, sister chromatids of each chromosome disjoin from one other and are pulled towards opposite ends. This event is described as disjunction. If an organism has a diploid number of 16 chromosomes, 16 chromosomes will move towards the opposite poles during anaphase.

Answer 15

(b)

Expert Solution

Answer 16

(b)

Expert Solution

Answer 17

Expert Solution

Answer 18

Summary Introduction

To determine: The number of chromosomes that move towards the opposite poles during anaphase.

Introduction: Mitosis is divided into several stages: prophase, prometaphase, metaphase, anaphase, and telophase.

Answer 19

Explanation of Solution

In metaphase, the homologous chromosomes duplicate. Anaphase is the shortest stage of mitosis. The events critical to chromosome distribution occur during this stage. In this stage, sister chromatids of each chromosome disjoin from one other and are pulled towards opposite ends. This event is described as disjunction. If an organism has a diploid number of 16 chromosomes, 16 chromosomes will move towards the opposite poles during anaphase.