Which Of The Following Would Not Contribute To Genetic Variation

Question:

Answer: Answer: A, B, C

Question: Cancer cells require many nutrients which are supplied by blood vessels. The growth of new

blood vessels into cancerous tissue is called

A) angiogenesis.

B) metastasis.

C) carcinogenesis.

D) apoptosis.

Answer: Answer: A

Question: Apoptosis

A) is programmed cell death.

B) is a process that acts to decrease the number of somatic cells.

C) frees the fingers and toes of the human embryo from their “webbed” structure to independent

structures.

D) All of the choices are correct.

Answer: Answer: D

Question: The region that contains the genetic information in a bacterial cell is called the

A) nucleus.

B) nucleoid.

C) nucleolus.

D) nucleosome.

E) nucleoprotein.

Answer: Answer: B

Question:

Answer: Answer: D

Question: If a parent cell has 48 chromosomes, how many chromosomes will each daughter cell have

after mitosis and cytokinesis occurs?

A) 24 chromosomes

B) 48 chromosomes

C) 12 chromosomes

D) 96 chromosomes

Answer: Answer: B

Question: Interphase

A) occupies the majority of the cell cycle

B) includes G1, S, and G2 stages

C) results in an increase in cell size

D) All of the answer choices are correct.

E) Only A and C are correct.

Answer: Answer: D

Question: Eukaryotic chromosomes

A) consist of both DNA and protein.

B) may occur as chromatin.

C) contain histones responsible for packaging DNA to fit into a small space.

D) All of the choices are correct.

E) Only A and B are correct.

Answer: Answer: D

Question: The enzymes that bring about apoptosis are called caspases.

Answer: Answer: TRUE

Question: What might prevent a cell from passing the G1 checkpoint?

A) The DNA has not completed replication.

B) The cell may need to enter the G) stage.

C) The cell may have damaged DNA and need to undergo apoptosis.

D) Only A and B are correct.

E) Only B and C are correct.

Answer: Answer: E