Deck 2: Chromosomes and Cellular Reproduction

Question 1

Which of the following is NOT true of cell reproduction?

A)Genetic information needs to be copied.
B)Copies of genetic information do NOT separate during cell reproduction.
C)Cell division occurs.
D)Though prokaryotes and eukaryotes accomplish cell reproduction similarly,they require different processes.

Answer 1

B
Copies of genetic information do NOT separate during cell reproduction .

Question 2

Which of the following is NOT a part of the cell cycle?

A)G1
B)G2
C)S0
D)S
E)M

Answer 2

C
S0

Question 3

____________ chromosomes have their centromere located in the middle.

A)Telocentric
B)Acrocentric
C)Submetacentric
D)Metacentric
E)none of the above

Answer 3

D
Metacentric

Question 4

Crossing over usually occurs during

A)meiosis I.
B)meiosis II.
C)mitosis.
D)S-phase.
E)Crossing over occurs randomly in all division types.

Question 5

In the example below,how many chromosomes are in prophase and anaphase?

A)8 and 8
B)4 and 4
C)4 and 8
D)8 and 4
E)2 and 8

Question 6

Meiosis I is called the ___________ division and meiosis II is called the __________ division.

A)reduction; equational
B)interphase; prophase
C)equational; reduction
D)mitotic; interphase
E)none of the above

Question 7

Crossing over and the random distribution of maternal and paternal chromosomes are responsible for

A)genetic stability.
B)cell division.
C)genetic variation.
D)DNA synthesis.
E)none of the above

Question 8

How many chromosomes would have been in an oogonium that produced an ovum with 18 chromosomes?

A)2
B)9
C)18
D)36
E)72

Question 9

All of the following make meiosis different from mitosis,EXCEPT

A)meiosis comprises 2 divisions.
B)chromosome number is reduced by half in meiosis.
C)resulting cells from meiosis are genetically different from the parent cell.
D)meiosis occurs only during embryonic development.

Question 10

In which part of the cell cycle is DNA replicated?

A)G1
B)G2
C)S
D)M
E)DNA is replicated before the cell cycle.

Question 11

In plants,which of the following are haploid?

A)megaspores
B)megasporocyte
C)microsporocyte
D)stamen cells
E)Only humans and fungi have haploid cells.

Question 12

A functional chromosome contains which of the following?

A)origin of replication
B)telomeres
C)centromeres
D)all of the above

Question 13

Genetically speaking,prokaryotes are different from eukaryotes because

A)prokaryotes usually have a single chromosome.
B)prokaryotes do not usually have histone proteins to package their DNA.
C)prokaryotes do not have a nucleus to maintain their DNA.
D)prokaryotes have the same amount of DNA that eukaryotes do.
E)all of the above

Question 14

Sister chromatids separate and move toward opposite poles during which phase of mitosis?

A)prophase
B)pro-metaphase
C)metaphase
D)anaphase
E)telophase