The chromosome constitution number of this individual is 2 π = 6. This drawing represents: a. mitotic metaphase. b. meiotic metaphase I. c. meiotic metaphase II. d. a gamete. e. sixnonhomologous chromosomes.

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 11, Problem 1TYK

The chromosome constitution number of this individual is 2 π = 6.

Chapter 11, Problem 1TYK, The chromosome constitution number of this individual is 2=6. This drawing represents: a. mitotic

This drawing represents:

a. mitotic metaphase.

b. meiotic metaphase I.

c. meiotic metaphase II.

d. a gamete.

e. sixnonhomologous chromosomes.

Expert Solution & Answer

Summary Introduction

Introduction:

The cell cycle consists of two main divisions known as mitosis and meiosis. Mitosis is the first division during the cell cycle in which the number of chromosomes remains same as the number of chromosomes in the parent cell; on the contrary, in meiosis, the number of chromosomes gets reduced to half.

Answer to Problem 1TYK

Correct answer:

Metaphase 1 of meiosis.

Explanation of Solution

Justification for the correct answer:

Biology: The Dynamic Science (MindTap Course List), Chapter 11, Problem 1TYK

Option (b) is meiotic metaphase 1. There are two meiotic divisions after mitosis, namely, meiosis 1 and meiosis 2. During the meiosis 1, the paired chromosomes, also known as bivalent, arrange themselves on the metaphase plate. These paired chromosomes align at the middle of the plate and get attached to the meiotic spindle. The spindle is formed from the structure of the protein, which is responsible for dividing the genetic material in the cell. Hence, option (b) is correct.

Explanation for the incorrect answer:

Option (a) is metaphase in mitosis. Mitosis is the first part of the cell cycle that takes place before the meiosis. Metaphase stage in mitosis involves the arrangement of most condensed chromosomes and these chromosomes then get coiled at this stage. During the metaphase stage of meiosis, the chromosomes are not paired. So, it is an incorrect option.

Option (c) is metaphase 2 phase of meiosis 2. The chromosomes in the meiosis 2 are similar to the chromosomes found in the metaphase stage of mitosis. During the meiosis 2, the chromosomes get condensed and attach themselves to the spindles arising from the centromere present at the opposite poles. These condensed chromosomes are aligned on a metaphase plate but they are in a condensed form. So, it is an incorrect option.

Option (d) is a gamete. During fertilization fusion of one haploid gamete with another haploid gamete results in the formation of a diploid zygote. Number of chromosomes in a haploid cell is 23, two haploid cells fuse together to form a diploid cell. During meiosis number of chromosomes are reduced to 23 from 46 chromosomes. So, it is an incorrect option.

Option (e) states that number of non-homologous chromosomes is 6. Paired chromosomes are the one in which one chromosome is a homolog to another chromosome. These paired chromosomes have the same gene content and possess the same morphology as well. Non-homologous chromosomes are paired chromosomes in which both the chromosomes possess a different gene content. So, it is an incorrect option.

Hence, options (a), (c), (d), and (e) are incorrect.

Conclusion

Therefore, it may be concluded that in the metaphase division of meiosis 1 alignment of paired chromosomes on the metaphase plate takes place. These paired chromosomes get attached to the spindle fibers during this (metaphase 1) stage.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

A) At the end of meiosis I, how many chromosomes are in each cell? B) Are the cells haploid or diploid? C) Are the chromosomes of the meiosis I products replicated or nonreplicated? D) During which phase in meiosis I would crossing over have occurred?

A diploid organism produces four gametes from one parent cell through the process of meiosis. Two gametes are found to have 7 chromosomes and two gametes are found to have 5 chromosomes. A) Is this the expected number of chromosomes that would be found in each gamete following a normal cycle of meiosis? If yes, explain why. If no, explain why not and describe how the gamete situation described above occurred. B) Determine the number of homologous chromosome pairs that the original parent cell contained, before meiosis began. Explain how you determined this value.

At the end of meiosis in humans, four gametes are produced that are: A. Genetically identical to each other and to the parent cell B. Genetically identical to each other but genetically different from the parent cell C. Genetically different from each other and the parent cell D. Genetically identical to the parent cell from different from each other

Answer 2

Textbook Question

Chapter 11, Problem 1TYK

The chromosome constitution number of this individual is 2 π = 6.

Chapter 11, Problem 1TYK, The chromosome constitution number of this individual is 2=6. This drawing represents: a. mitotic

This drawing represents:

a. mitotic metaphase.

b. meiotic metaphase I.

c. meiotic metaphase II.

d. a gamete.

e. sixnonhomologous chromosomes.

Expert Solution & Answer

Summary Introduction

Introduction:

The cell cycle consists of two main divisions known as mitosis and meiosis. Mitosis is the first division during the cell cycle in which the number of chromosomes remains same as the number of chromosomes in the parent cell; on the contrary, in meiosis, the number of chromosomes gets reduced to half.

Answer to Problem 1TYK

Correct answer:

Metaphase 1 of meiosis.

Explanation of Solution

Justification for the correct answer:

Biology: The Dynamic Science (MindTap Course List), Chapter 11, Problem 1TYK

Option (b) is meiotic metaphase 1. There are two meiotic divisions after mitosis, namely, meiosis 1 and meiosis 2. During the meiosis 1, the paired chromosomes, also known as bivalent, arrange themselves on the metaphase plate. These paired chromosomes align at the middle of the plate and get attached to the meiotic spindle. The spindle is formed from the structure of the protein, which is responsible for dividing the genetic material in the cell. Hence, option (b) is correct.

Explanation for the incorrect answer:

Option (a) is metaphase in mitosis. Mitosis is the first part of the cell cycle that takes place before the meiosis. Metaphase stage in mitosis involves the arrangement of most condensed chromosomes and these chromosomes then get coiled at this stage. During the metaphase stage of meiosis, the chromosomes are not paired. So, it is an incorrect option.

Option (c) is metaphase 2 phase of meiosis 2. The chromosomes in the meiosis 2 are similar to the chromosomes found in the metaphase stage of mitosis. During the meiosis 2, the chromosomes get condensed and attach themselves to the spindles arising from the centromere present at the opposite poles. These condensed chromosomes are aligned on a metaphase plate but they are in a condensed form. So, it is an incorrect option.

Option (d) is a gamete. During fertilization fusion of one haploid gamete with another haploid gamete results in the formation of a diploid zygote. Number of chromosomes in a haploid cell is 23, two haploid cells fuse together to form a diploid cell. During meiosis number of chromosomes are reduced to 23 from 46 chromosomes. So, it is an incorrect option.

Option (e) states that number of non-homologous chromosomes is 6. Paired chromosomes are the one in which one chromosome is a homolog to another chromosome. These paired chromosomes have the same gene content and possess the same morphology as well. Non-homologous chromosomes are paired chromosomes in which both the chromosomes possess a different gene content. So, it is an incorrect option.

Hence, options (a), (c), (d), and (e) are incorrect.

Conclusion

Therefore, it may be concluded that in the metaphase division of meiosis 1 alignment of paired chromosomes on the metaphase plate takes place. These paired chromosomes get attached to the spindle fibers during this (metaphase 1) stage.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Textbook Question

Chapter 11, Problem 1TYK

The chromosome constitution number of this individual is 2 π = 6.

Chapter 11, Problem 1TYK, The chromosome constitution number of this individual is 2=6. This drawing represents: a. mitotic

This drawing represents:

a. mitotic metaphase.

b. meiotic metaphase I.

c. meiotic metaphase II.

d. a gamete.

e. sixnonhomologous chromosomes.

Expert Solution & Answer

Summary Introduction

Introduction:

The cell cycle consists of two main divisions known as mitosis and meiosis. Mitosis is the first division during the cell cycle in which the number of chromosomes remains same as the number of chromosomes in the parent cell; on the contrary, in meiosis, the number of chromosomes gets reduced to half.

Answer to Problem 1TYK

Correct answer:

Metaphase 1 of meiosis.

Explanation of Solution

Justification for the correct answer:

Biology: The Dynamic Science (MindTap Course List), Chapter 11, Problem 1TYK

Option (b) is meiotic metaphase 1. There are two meiotic divisions after mitosis, namely, meiosis 1 and meiosis 2. During the meiosis 1, the paired chromosomes, also known as bivalent, arrange themselves on the metaphase plate. These paired chromosomes align at the middle of the plate and get attached to the meiotic spindle. The spindle is formed from the structure of the protein, which is responsible for dividing the genetic material in the cell. Hence, option (b) is correct.

Explanation for the incorrect answer:

Option (a) is metaphase in mitosis. Mitosis is the first part of the cell cycle that takes place before the meiosis. Metaphase stage in mitosis involves the arrangement of most condensed chromosomes and these chromosomes then get coiled at this stage. During the metaphase stage of meiosis, the chromosomes are not paired. So, it is an incorrect option.

Option (c) is metaphase 2 phase of meiosis 2. The chromosomes in the meiosis 2 are similar to the chromosomes found in the metaphase stage of mitosis. During the meiosis 2, the chromosomes get condensed and attach themselves to the spindles arising from the centromere present at the opposite poles. These condensed chromosomes are aligned on a metaphase plate but they are in a condensed form. So, it is an incorrect option.

Option (d) is a gamete. During fertilization fusion of one haploid gamete with another haploid gamete results in the formation of a diploid zygote. Number of chromosomes in a haploid cell is 23, two haploid cells fuse together to form a diploid cell. During meiosis number of chromosomes are reduced to 23 from 46 chromosomes. So, it is an incorrect option.

Option (e) states that number of non-homologous chromosomes is 6. Paired chromosomes are the one in which one chromosome is a homolog to another chromosome. These paired chromosomes have the same gene content and possess the same morphology as well. Non-homologous chromosomes are paired chromosomes in which both the chromosomes possess a different gene content. So, it is an incorrect option.

Hence, options (a), (c), (d), and (e) are incorrect.

Conclusion

Therefore, it may be concluded that in the metaphase division of meiosis 1 alignment of paired chromosomes on the metaphase plate takes place. These paired chromosomes get attached to the spindle fibers during this (metaphase 1) stage.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 11, Problem 1TYK

The chromosome constitution number of this individual is 2 π = 6.

Chapter 11, Problem 1TYK, The chromosome constitution number of this individual is 2=6. This drawing represents: a. mitotic

This drawing represents:

a. mitotic metaphase.

b. meiotic metaphase I.

c. meiotic metaphase II.

d. a gamete.

e. sixnonhomologous chromosomes.

Expert Solution & Answer

Summary Introduction

Introduction:

The cell cycle consists of two main divisions known as mitosis and meiosis. Mitosis is the first division during the cell cycle in which the number of chromosomes remains same as the number of chromosomes in the parent cell; on the contrary, in meiosis, the number of chromosomes gets reduced to half.

Answer to Problem 1TYK

Correct answer:

Metaphase 1 of meiosis.

Explanation of Solution

Justification for the correct answer:

Biology: The Dynamic Science (MindTap Course List), Chapter 11, Problem 1TYK

Option (b) is meiotic metaphase 1. There are two meiotic divisions after mitosis, namely, meiosis 1 and meiosis 2. During the meiosis 1, the paired chromosomes, also known as bivalent, arrange themselves on the metaphase plate. These paired chromosomes align at the middle of the plate and get attached to the meiotic spindle. The spindle is formed from the structure of the protein, which is responsible for dividing the genetic material in the cell. Hence, option (b) is correct.

Explanation for the incorrect answer:

Option (a) is metaphase in mitosis. Mitosis is the first part of the cell cycle that takes place before the meiosis. Metaphase stage in mitosis involves the arrangement of most condensed chromosomes and these chromosomes then get coiled at this stage. During the metaphase stage of meiosis, the chromosomes are not paired. So, it is an incorrect option.

Option (c) is metaphase 2 phase of meiosis 2. The chromosomes in the meiosis 2 are similar to the chromosomes found in the metaphase stage of mitosis. During the meiosis 2, the chromosomes get condensed and attach themselves to the spindles arising from the centromere present at the opposite poles. These condensed chromosomes are aligned on a metaphase plate but they are in a condensed form. So, it is an incorrect option.

Option (d) is a gamete. During fertilization fusion of one haploid gamete with another haploid gamete results in the formation of a diploid zygote. Number of chromosomes in a haploid cell is 23, two haploid cells fuse together to form a diploid cell. During meiosis number of chromosomes are reduced to 23 from 46 chromosomes. So, it is an incorrect option.

Option (e) states that number of non-homologous chromosomes is 6. Paired chromosomes are the one in which one chromosome is a homolog to another chromosome. These paired chromosomes have the same gene content and possess the same morphology as well. Non-homologous chromosomes are paired chromosomes in which both the chromosomes possess a different gene content. So, it is an incorrect option.

Hence, options (a), (c), (d), and (e) are incorrect.

Conclusion

Therefore, it may be concluded that in the metaphase division of meiosis 1 alignment of paired chromosomes on the metaphase plate takes place. These paired chromosomes get attached to the spindle fibers during this (metaphase 1) stage.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

The cell cycle consists of two main divisions known as mitosis and meiosis. Mitosis is the first division during the cell cycle in which the number of chromosomes remains same as the number of chromosomes in the parent cell; on the contrary, in meiosis, the number of chromosomes gets reduced to half.

Answer to Problem 1TYK

Correct answer:

Metaphase 1 of meiosis.

Explanation of Solution

Justification for the correct answer:

Biology: The Dynamic Science (MindTap Course List), Chapter 11, Problem 1TYK

Option (b) is meiotic metaphase 1. There are two meiotic divisions after mitosis, namely, meiosis 1 and meiosis 2. During the meiosis 1, the paired chromosomes, also known as bivalent, arrange themselves on the metaphase plate. These paired chromosomes align at the middle of the plate and get attached to the meiotic spindle. The spindle is formed from the structure of the protein, which is responsible for dividing the genetic material in the cell. Hence, option (b) is correct.

Explanation for the incorrect answer:

Option (a) is metaphase in mitosis. Mitosis is the first part of the cell cycle that takes place before the meiosis. Metaphase stage in mitosis involves the arrangement of most condensed chromosomes and these chromosomes then get coiled at this stage. During the metaphase stage of meiosis, the chromosomes are not paired. So, it is an incorrect option.

Option (c) is metaphase 2 phase of meiosis 2. The chromosomes in the meiosis 2 are similar to the chromosomes found in the metaphase stage of mitosis. During the meiosis 2, the chromosomes get condensed and attach themselves to the spindles arising from the centromere present at the opposite poles. These condensed chromosomes are aligned on a metaphase plate but they are in a condensed form. So, it is an incorrect option.

Option (d) is a gamete. During fertilization fusion of one haploid gamete with another haploid gamete results in the formation of a diploid zygote. Number of chromosomes in a haploid cell is 23, two haploid cells fuse together to form a diploid cell. During meiosis number of chromosomes are reduced to 23 from 46 chromosomes. So, it is an incorrect option.

Option (e) states that number of non-homologous chromosomes is 6. Paired chromosomes are the one in which one chromosome is a homolog to another chromosome. These paired chromosomes have the same gene content and possess the same morphology as well. Non-homologous chromosomes are paired chromosomes in which both the chromosomes possess a different gene content. So, it is an incorrect option.

Hence, options (a), (c), (d), and (e) are incorrect.

Conclusion

Therefore, it may be concluded that in the metaphase division of meiosis 1 alignment of paired chromosomes on the metaphase plate takes place. These paired chromosomes get attached to the spindle fibers during this (metaphase 1) stage.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

The cell cycle consists of two main divisions known as mitosis and meiosis. Mitosis is the first division during the cell cycle in which the number of chromosomes remains same as the number of chromosomes in the parent cell; on the contrary, in meiosis, the number of chromosomes gets reduced to half.

Answer to Problem 1TYK

Correct answer:

Metaphase 1 of meiosis.

Explanation of Solution

Justification for the correct answer:

Biology: The Dynamic Science (MindTap Course List), Chapter 11, Problem 1TYK

Option (b) is meiotic metaphase 1. There are two meiotic divisions after mitosis, namely, meiosis 1 and meiosis 2. During the meiosis 1, the paired chromosomes, also known as bivalent, arrange themselves on the metaphase plate. These paired chromosomes align at the middle of the plate and get attached to the meiotic spindle. The spindle is formed from the structure of the protein, which is responsible for dividing the genetic material in the cell. Hence, option (b) is correct.

Explanation for the incorrect answer:

Option (a) is metaphase in mitosis. Mitosis is the first part of the cell cycle that takes place before the meiosis. Metaphase stage in mitosis involves the arrangement of most condensed chromosomes and these chromosomes then get coiled at this stage. During the metaphase stage of meiosis, the chromosomes are not paired. So, it is an incorrect option.

Option (c) is metaphase 2 phase of meiosis 2. The chromosomes in the meiosis 2 are similar to the chromosomes found in the metaphase stage of mitosis. During the meiosis 2, the chromosomes get condensed and attach themselves to the spindles arising from the centromere present at the opposite poles. These condensed chromosomes are aligned on a metaphase plate but they are in a condensed form. So, it is an incorrect option.

Option (d) is a gamete. During fertilization fusion of one haploid gamete with another haploid gamete results in the formation of a diploid zygote. Number of chromosomes in a haploid cell is 23, two haploid cells fuse together to form a diploid cell. During meiosis number of chromosomes are reduced to 23 from 46 chromosomes. So, it is an incorrect option.

Option (e) states that number of non-homologous chromosomes is 6. Paired chromosomes are the one in which one chromosome is a homolog to another chromosome. These paired chromosomes have the same gene content and possess the same morphology as well. Non-homologous chromosomes are paired chromosomes in which both the chromosomes possess a different gene content. So, it is an incorrect option.

Hence, options (a), (c), (d), and (e) are incorrect.

Conclusion

Therefore, it may be concluded that in the metaphase division of meiosis 1 alignment of paired chromosomes on the metaphase plate takes place. These paired chromosomes get attached to the spindle fibers during this (metaphase 1) stage.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

The cell cycle consists of two main divisions known as mitosis and meiosis. Mitosis is the first division during the cell cycle in which the number of chromosomes remains same as the number of chromosomes in the parent cell; on the contrary, in meiosis, the number of chromosomes gets reduced to half.

Answer 12

Answer to Problem 1TYK

Correct answer:

Metaphase 1 of meiosis.

Answer 13

Explanation of Solution

Justification for the correct answer:

Biology: The Dynamic Science (MindTap Course List), Chapter 11, Problem 1TYK

Option (b) is meiotic metaphase 1. There are two meiotic divisions after mitosis, namely, meiosis 1 and meiosis 2. During the meiosis 1, the paired chromosomes, also known as bivalent, arrange themselves on the metaphase plate. These paired chromosomes align at the middle of the plate and get attached to the meiotic spindle. The spindle is formed from the structure of the protein, which is responsible for dividing the genetic material in the cell. Hence, option (b) is correct.

Explanation for the incorrect answer:

Option (a) is metaphase in mitosis. Mitosis is the first part of the cell cycle that takes place before the meiosis. Metaphase stage in mitosis involves the arrangement of most condensed chromosomes and these chromosomes then get coiled at this stage. During the metaphase stage of meiosis, the chromosomes are not paired. So, it is an incorrect option.

Option (c) is metaphase 2 phase of meiosis 2. The chromosomes in the meiosis 2 are similar to the chromosomes found in the metaphase stage of mitosis. During the meiosis 2, the chromosomes get condensed and attach themselves to the spindles arising from the centromere present at the opposite poles. These condensed chromosomes are aligned on a metaphase plate but they are in a condensed form. So, it is an incorrect option.

Option (d) is a gamete. During fertilization fusion of one haploid gamete with another haploid gamete results in the formation of a diploid zygote. Number of chromosomes in a haploid cell is 23, two haploid cells fuse together to form a diploid cell. During meiosis number of chromosomes are reduced to 23 from 46 chromosomes. So, it is an incorrect option.

Option (e) states that number of non-homologous chromosomes is 6. Paired chromosomes are the one in which one chromosome is a homolog to another chromosome. These paired chromosomes have the same gene content and possess the same morphology as well. Non-homologous chromosomes are paired chromosomes in which both the chromosomes possess a different gene content. So, it is an incorrect option.

Hence, options (a), (c), (d), and (e) are incorrect.

Answer 14

Conclusion

Therefore, it may be concluded that in the metaphase division of meiosis 1 alignment of paired chromosomes on the metaphase plate takes place. These paired chromosomes get attached to the spindle fibers during this (metaphase 1) stage.

Answer 15

Ch. 11.1 - How does the outcome to meiosis differ from that...Ch. 11.1 - Prob. 2SB Ch. 11.1 - Prob. 3SB Ch. 11.2 - Prob. 1SB Ch. 11.2 - Consider an animal with six pairs of chromosomes;...Ch. 11.3 - Prob. 1SB Ch. 11 - The chromosome constitution number of this...Ch. 11 - Which of the following is not associated with...Ch. 11 - Chiasmata: a. form during metaphase II of meiosis....Ch. 11 - If 2n is four, the number of possible combinations...

The chromosome constitution number of this individual is 2 π = 6. This drawing represents: a. mitotic metaphase. b. meiotic metaphase I. c. meiotic metaphase II. d. a gamete. e. sixnonhomologous chromosomes.

Concept explainers

Videos

Answer to Problem 1TYK

Explanation of Solution

Want to see more full solutions like this?

Chapter 11 Solutions