Question 1

The most appropriate form of cell division for repairing an injured tissue is ________.

Accepted Answer

Mitosis is the most appropriate form of cell division for repairing an injured tissue as it results in the production of two identical daughter cells with the same chromosome number as the parent cell. This helps in replacing the damaged or lost cells in the tissue to facilitate healing. Meiosis is a form of cell division that occurs in gametes to produce genetically diverse daughter cells. Cytokinesis is the final step of mitosis and meiosis where the cytoplasm splits to form two daughter cells. Cloning is not a form of cell division, but a method of producing genetically identical organisms from a single parent cell.

Question 2

An entire cell cycle can be completed in about ________.

Accepted Answer

The entire cell cycle in a typical human cell takes about 24 hours to complete, including all phases such as interphase and mitosis.

Question 3

DNA that has wrapped around histones and is in a condensed form following interphase is called ________.

Accepted Answer

Interphase DNA undergoes condensation and forms distinctive structures called chromosomes, characterized by their characteristic shape and size.

Question 4

The separation of daughter cells is called ________.

Accepted Answer

Cytokinesis is the process where the cytoplasm divides and the resulting daughter cells are physically separated from each other. Karyokinesis refers specifically to the division of the nucleus during mitosis or meiosis. Mitosis is the process of nuclear division, where one cell divides into two genetically identical daughter cells. Nucleosome refers to the basic unit of DNA packaging in eukaryotic cells.

Question 5

A cell with a diploid number of 24 fails to undergo cytokinesis while performing mitosis so that the daughter cells do not form.How many chromosomes will be in the resulting cell?

Accepted Answer

If cytokinesis fails to occur, the resulting cell will have double the chromosome number, as all the chromosomes will be present in a single cell instead of being distributed into two daughter cells. So, the resulting cell will have 2x the diploid number of chromosomes, which is 48. Therefore, the correct option is B)48.

Question 6

Which of the following characterizes Klinefelter syndrome?

Accepted Answer

Klinefelter syndrome is characterized by the presence of an extra X chromosome in males, resulting in a karyotype of XXY.

Question 7

Oogenesis differs from spermatogenesis in ________.

Accepted Answer

Oogenesis differs from spermatogenesis in all three ways listed: 
A) number of functional gametes produced - oogenesis produces one functional gamete (the egg), while spermatogenesis produces four functional gametes (sperm).
B) when it is completed - oogenesis is completed at menopause, usually around age 50, while spermatogenesis continues throughout a male's life. 
C) size of gametes produced - the egg cell produced by oogenesis is much larger than a sperm cell produced by spermatogenesis.

Question 8

Which of the following phases of mitosis is not matched with the appropriate activities that occur during that phase?

Accepted Answer

Anaphase is the phase where sister chromatids (not homologous pairs) separate and are pulled to opposite ends of the cell by the spindle fibers.

Question 9

Children born with Down syndrome have inherited an extra chromosome so their diploid number is 47 rather than 46 chromosomes.What is this genetic condition called?

Accepted Answer

Trisomy 21 is the term used for the genetic condition where a person has three copies of chromosome 21, resulting in a total of 47 chromosomes. This is the cause of Down syndrome.

Question 10

How do mitosis and meiosis differ from each other?

Accepted Answer

Mitosis and meiosis differ in multiple ways, but one significant difference is that mitosis produces diploid cells (containing the full complement of chromosomes) while meiosis produces haploid cells (containing half the number of chromosomes).

Question 11

A process in which a sister chromatid inherited from the mother and a sister chromatid inherited from the father pair up and form tetrads and exchange DNA to form genetically diverse gametes is called ________.

Accepted Answer

Crossing over is the process in which homologous chromosomes pair up and exchange DNA during meiosis I. This results in genetically diverse gametes, as the chromosomes shuffled and new combinations of alleles are formed. The cell cycle refers to the sequence of events that a cell goes through as it grows and divides. Prophase is a stage of mitosis or meiosis when the chromosomes condense and become visible. Cytokinesis is the final stage of cell division, when the cytoplasm is divided into two daughter cells. None of these processes involve the exchange of genetic material between homologous chromosomes.

Question 12

In which phase does the chromatin condense into chromosomes,the nuclear membrane disintegrates,and the centrioles migrate to the poles as spindle fibers are organized?

Accepted Answer

Prophase is the phase of mitosis where the chromatin condenses into chromosomes and the nuclear membrane disintegrates. Additionally, the centrioles migrate to the poles to organize spindle fibers, which will later pull the chromosomes apart during cell division.

Question 13

The exchange of genetic material during crossing over causes which of the following?

Accepted Answer

Crossing over occurs during meiosis, specifically during prophase I of meiosis I. During this process, homologous chromosomes pair up and exchange genetic material, resulting in genetic variation among the resulting gametes. Therefore, the correct choice is A - genetic variation.

Question 14

Cancer is associated with problems related to the regulation of ________.

Accepted Answer

Cancer is characterized by uncontrolled cell division, which is regulated by mitosis. Problems with regulation of mitosis can result in the formation and growth of tumors.

Question 15

In which phase of meiosis I do homologues separate?

Accepted Answer

Homologous chromosomes separate during anaphase I of meiosis I.

Question 16

Polar bodies are unique products of ________.

Accepted Answer

Polar bodies are produced during oogenesis, specifically during meiosis I and II. As the primary oocyte undergoes meiosis I, it divides unequally, producing a large secondary oocyte and a small polar body. The secondary oocyte then goes on to complete meiosis II, producing a second polar body and the mature ovum. The polar bodies, which contain only a small amount of cytoplasm and organelles, are eventually reabsorbed by the body. Polar bodies are not produced during mitosis or spermatogenesis.

Question 17

In which stage of mitosis does exchange of genetic material between chromosomes (crossing-over)occur?

Accepted Answer

Crossing over occurs during prophase I of meiosis, not mitosis.

Question 18

A process that parcels out the duplicated copies of genetic material for cell division in eukaryotes is called ________.

Accepted Answer

The process of mitosis is responsible for the distribution of duplicated genetic material (in the form of chromosomes) to daughter cells during cell division in eukaryotes. Nucleosomes and histones are related to chromatin structure but are not directly involved in the process of genetic material distribution. Meiosis is a different type of cell division that results in the formation of gametes (sperm and egg cells) with half the normal number of chromosomes.

Question 19

Human cells that have completed telophase I will each contain ________ chromosomes,which will be in a(n)________ form.

Accepted Answer

During telophase I of meiosis, each cell will contain 23 chromosomes, and each chromosome will still consist of two sister chromatids, indicating they are in a replicated form.

Question 20

If a cell begins mitosis with 36 chromosomes,there will be ________ chromosomes in each cell after mitosis and each daughter cell will be ________ genetically.

Accepted Answer

During mitosis, the cell divides its chromosomes equally between two daughter cells. Therefore, each daughter cell will receive 36 chromosomes, which is the same as the original cell. Additionally, mitosis results in identical daughter cells as they receive the same genetic information from the parent cell.

Quiz 19: Chromosomes and Cell Division

The most appropriate form of cell division for repairing an injured tissue is ________.

An entire cell cycle can be completed in about ________.

DNA that has wrapped around histones and is in a condensed form following interphase is called ________.

The separation of daughter cells is called ________.

A cell with a diploid number of 24 fails to undergo cytokinesis while performing mitosis so that the daughter cells do not form.How many chromosomes will be in the resulting cell?

Which of the following characterizes Klinefelter syndrome?

Oogenesis differs from spermatogenesis in ________.

Which of the following phases of mitosis is not matched with the appropriate activities that occur during that phase?

Children born with Down syndrome have inherited an extra chromosome so their diploid number is 47 rather than 46 chromosomes.What is this genetic condition called?

How do mitosis and meiosis differ from each other?

A process in which a sister chromatid inherited from the mother and a sister chromatid inherited from the father pair up and form tetrads and exchange DNA to form genetically diverse gametes is called ________.

In which phase does the chromatin condense into chromosomes,the nuclear membrane disintegrates,and the centrioles migrate to the poles as spindle fibers are organized?

The exchange of genetic material during crossing over causes which of the following?

Cancer is associated with problems related to the regulation of ________.

In which phase of meiosis I do homologues separate?

Polar bodies are unique products of ________.

In which stage of mitosis does exchange of genetic material between chromosomes (crossing-over) occur?

A process that parcels out the duplicated copies of genetic material for cell division in eukaryotes is called ________.

Human cells that have completed telophase I will each contain chromosomes,which will be in a(n) form.

If a cell begins mitosis with 36 chromosomes,there will be chromosomes in each cell after mitosis and each daughter cell will be genetically.

Quiz 19: Chromosomes and Cell Division

The most appropriate form of cell division for repairing an injured tissue is ________.

An entire cell cycle can be completed in about ________.

DNA that has wrapped around histones and is in a condensed form following interphase is called ________.

The separation of daughter cells is called ________.

A cell with a diploid number of 24 fails to undergo cytokinesis while performing mitosis so that the daughter cells do not form.How many chromosomes will be in the resulting cell?

Which of the following characterizes Klinefelter syndrome?

Oogenesis differs from spermatogenesis in ________.

Which of the following phases of mitosis is not matched with the appropriate activities that occur during that phase?

Children born with Down syndrome have inherited an extra chromosome so their diploid number is 47 rather than 46 chromosomes.What is this genetic condition called?

How do mitosis and meiosis differ from each other?

A process in which a sister chromatid inherited from the mother and a sister chromatid inherited from the father pair up and form tetrads and exchange DNA to form genetically diverse gametes is called ________.

In which phase does the chromatin condense into chromosomes,the nuclear membrane disintegrates,and the centrioles migrate to the poles as spindle fibers are organized?

The exchange of genetic material during crossing over causes which of the following?

Cancer is associated with problems related to the regulation of ________.

In which phase of meiosis I do homologues separate?

Polar bodies are unique products of ________.

In which stage of mitosis does exchange of genetic material between chromosomes (crossing-over) occur?

A process that parcels out the duplicated copies of genetic material for cell division in eukaryotes is called ________.

Human cells that have completed telophase I will each contain ________ chromosomes,which will be in a(n) ________ form.

If a cell begins mitosis with 36 chromosomes,there will be ________ chromosomes in each cell after mitosis and each daughter cell will be ________ genetically.

Human cells that have completed telophase I will each contain chromosomes,which will be in a(n) form.

If a cell begins mitosis with 36 chromosomes,there will be chromosomes in each cell after mitosis and each daughter cell will be genetically.