Question 1

If a plant has a total of 18 chromosomes, how many chromosomes would be present in each of its gametes?

Accepted Answer

A) 36 
B) 18 
C) 9 
D) 6 
A) 36 
B) 18 
C) 9 
D) 6

Question 2

The process shown in the figure could produce

Accepted Answer

A) two identical skin cells. 
B) two genetically unique sperm cells. 
C) two cloned red blood cells. 
D) two identical prokaryotic cells. 
A) two identical skin cells. 
B) two genetically unique sperm cells. 
C) two cloned red blood cells. 
D) two identical prokaryotic cells.

Question 3

A duplicated chromosome consists of ________ sister chromatid(s).

Accepted Answer

A) 1 
B) 2 
C) 4 
D) 6 
A) 1 
B) 2 
C) 4 
D) 6

Question 4

Match the stage of the cell cycle with the appropriate description.
-G₁ phase

Accepted Answer

A) Duplicated chromosomes are separated during this phase. 
B) Cells prepare to divide and check that the proper steps have occurred for division. 
C) Phase in which cells duplicate the genetic material. 
D) Resting stage assumed by cells that exit the cell cycle. 
E) Two new daughter cells grow in preparation for division. 
A) Duplicated chromosomes are separated during this phase. 
B) Cells prepare to divide and check that the proper steps have occurred for division. 
C) Phase in which cells duplicate the genetic material. 
D) Resting stage assumed by cells that exit the cell cycle. 
E) Two new daughter cells grow in preparation for division.

Question 5

Match the stage of the cell cycle with the appropriate description.
-M phase

Accepted Answer

A) Duplicated chromosomes are separated during this phase. 
B) Cells prepare to divide and check that the proper steps have occurred for division. 
C) Phase in which cells duplicate the genetic material. 
D) Resting stage assumed by cells that exit the cell cycle. 
E) Two new daughter cells grow in preparation for division. 
A) Duplicated chromosomes are separated during this phase. 
B) Cells prepare to divide and check that the proper steps have occurred for division. 
C) Phase in which cells duplicate the genetic material. 
D) Resting stage assumed by cells that exit the cell cycle. 
E) Two new daughter cells grow in preparation for division.

Question 6

According to the image below, during which phase of the cell cycle is the genetic material duplicated?

Accepted Answer

A) Region 1 
B) Region 3 
C) Region 4 
D) Region 5 
A) Region 1 
B) Region 3 
C) Region 4 
D) Region 5

Question 7

Which of the following statements about cell division is correct?

Accepted Answer

A) It is the process by which organisms grow and maintain their tissues. 
B) It is no longer necessary once an organism reaches maturity. 
C) It occurs in two sequential stages in all cells: mitosis and meiosis. 
D) It is the process by which fertilization occurs. 
A) It is the process by which organisms grow and maintain their tissues. 
B) It is no longer necessary once an organism reaches maturity. 
C) It occurs in two sequential stages in all cells: mitosis and meiosis. 
D) It is the process by which fertilization occurs.

Question 8

Homologous chromosomes

Accepted Answer

A) are only found in bacterial cells. 
B) are only in the cell during S phase. 
C) consist of a maternal and paternal copy of each chromosome. 
D) consist of six sister chromatids that are held together at the centrosome. 
A) are only found in bacterial cells. 
B) are only in the cell during S phase. 
C) consist of a maternal and paternal copy of each chromosome. 
D) consist of six sister chromatids that are held together at the centrosome.

Question 9

Which two processes work in conjunction to create genetic diversity and maintain chromosome number?

Accepted Answer

A) mitosis and meiosis 
B) meiosis and independent assortment 
C) binary fission and mitosis 
D) fertilization and meiosis 
A) mitosis and meiosis 
B) meiosis and independent assortment 
C) binary fission and mitosis 
D) fertilization and meiosis

Question 10

Which of the following is associated with mitosis?

Accepted Answer

A) independent assortment 
B) maintenance of chromosome number 
C) crossing over 
D) reductional division 
A) independent assortment 
B) maintenance of chromosome number 
C) crossing over 
D) reductional division

Question 11

Binary fission is the form of asexual reproduction that mainly occurs in ________ cells.

Accepted Answer

bacterial

Question 12

Which of the following cell types is produced by meiosis?

Accepted Answer

A) skin cells 
B) muscle cells 
C) pancreatic cells 
D) sperm cells 
A) skin cells 
B) muscle cells 
C) pancreatic cells 
D) sperm cells

Question 13

The circle near the center of this structure represents a

Accepted Answer

A) chromatid. 
B) centromere. 
C) centriole. 
D) homologous chromosome. 
A) chromatid. 
B) centromere. 
C) centriole. 
D) homologous chromosome.

Question 14

A researcher is recording the process of bacteria cell division using time-lapse microscopy. Which of the following processes would she be observing?

Accepted Answer

A) meiosis 
B) mitosis 
C) binary fission 
D) She may be observing either A or B depending on the growth conditions. 
A) meiosis 
B) mitosis 
C) binary fission 
D) She may be observing either A or B depending on the growth conditions.

Question 15

An actively dividing cell has six chromosomes. How many sister chromatids are present within this cell at the end of G₂ phase?

Accepted Answer

A) 0 
B) 3 
C) 6 
D) 12 
A) 0 
B) 3 
C) 6 
D) 12

Question 16

In genetic engineering, molecular biologists often combine segments of DNA from two separate organisms. This is an example of genetic recombination that occurs in a laboratory setting. Which of the following is a form of genetic recombination that occurs naturally within cells?

Accepted Answer

A) mitosis 
B) independent assortment 
C) crossing over 
D) asexual reproduction 
A) mitosis 
B) independent assortment 
C) crossing over 
D) asexual reproduction

Question 17

Which of the following would promote a cell to move through the G₂ checkpoint?

Accepted Answer

A) the cell lacks necessary nutrients 
B) the genetic information has been duplicated 
C) the cell is too small in size 
D) a chromosome has been damaged 
A) the cell lacks necessary nutrients 
B) the genetic information has been duplicated 
C) the cell is too small in size 
D) a chromosome has been damaged

Question 18

Which of the following differentiates meiosis from mitosis?

Accepted Answer

A) Mitosis is used for the repair of cells, whereas meiosis creates cells for sexual reproduction. 
B) In mitosis four identical daughter cells are produced, whereas two genetically different cells are produced in meiosis. 
C) Meiosis is a form of asexual division, whereas mitosis is a form of sexual division. 
D) Mitosis occurs in prokaryotic cells, whereas meiosis occurs in eukaryotic cells. 
A) Mitosis is used for the repair of cells, whereas meiosis creates cells for sexual reproduction. 
B) In mitosis four identical daughter cells are produced, whereas two genetically different cells are produced in meiosis. 
C) Meiosis is a form of asexual division, whereas mitosis is a form of sexual division. 
D) Mitosis occurs in prokaryotic cells, whereas meiosis occurs in eukaryotic cells.

Question 19

Gametes are produced by meiosis rather than mitosis because

Accepted Answer

A) mitosis would produce too many sister cells. 
B) meiosis reduces the chromosome number so that zygotes produced will have one full genome. 
C) meiosis doubles the chromosome number so that each gamete has twice the usual number of genes. 
D) meiosis ensures that the gametes are identical to the cell that produced them. 
A) mitosis would produce too many sister cells. 
B) meiosis reduces the chromosome number so that zygotes produced will have one full genome. 
C) meiosis doubles the chromosome number so that each gamete has twice the usual number of genes. 
D) meiosis ensures that the gametes are identical to the cell that produced them.

Question 20

The G₀ phase of the cell cycle is distinguished by

Accepted Answer

A) the failure of cells to divide following telophase. 
B) a doubling of chromosomes. 
C) an absence of preparation for DNA synthesis. 
D) the appearance of a metaphase plate. 
A) the failure of cells to divide following telophase. 
B) a doubling of chromosomes. 
C) an absence of preparation for DNA synthesis. 
D) the appearance of a metaphase plate.

Exam 5: Cell Division

If a plant has a total of 18 chromosomes, how many chromosomes would be present in each of its gametes?

The process shown in the figure could produce

A duplicated chromosome consists of ________ sister chromatid(s).

Match the stage of the cell cycle with the appropriate description. -G₁ phase

Match the stage of the cell cycle with the appropriate description. -M phase

According to the image below, during which phase of the cell cycle is the genetic material duplicated?

Which of the following statements about cell division is correct?

Homologous chromosomes

Which two processes work in conjunction to create genetic diversity and maintain chromosome number?

Which of the following is associated with mitosis?

Binary fission is the form of asexual reproduction that mainly occurs in ________ cells.

Which of the following cell types is produced by meiosis?

The circle near the center of this structure represents a

A researcher is recording the process of bacteria cell division using time-lapse microscopy. Which of the following processes would she be observing?

An actively dividing cell has six chromosomes. How many sister chromatids are present within this cell at the end of G₂ phase?

In genetic engineering, molecular biologists often combine segments of DNA from two separate organisms. This is an example of genetic recombination that occurs in a laboratory setting. Which of the following is a form of genetic recombination that occurs naturally within cells?

Which of the following would promote a cell to move through the G₂ checkpoint?

Which of the following differentiates meiosis from mitosis?

Gametes are produced by meiosis rather than mitosis because

The G₀ phase of the cell cycle is distinguished by

The Nature of Science

Chemistry of Life

Life Is Cellular

How Cells Work

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

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The History of Life

Human Evolution

General Principles of Ecology

Growth of Populations

Communities of Organisms

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