11/16/2024 10:16 AM
CMB 352 Final Exam Questions With
Correct Answers
A group of cells is assayed for DNA content immediately following the completion of mitosis
and is found to have an average of 8 picograms of DNA per nucleus. Those cells would have ___
picograms at the end of S phase and ___ picograms at the end of G2.
a) 8, 8
b) 8, 16
c) 16, 8
d) 16, 16
e) 12, 16 - answer✔d) 16, 16
Synapsis and crossing over occurs during which of the following phases of meiosis:
a) interphase
b) prophase I
c) anaphase I
d) prophase II
e) telophase II - answer✔b) prophase I
If there are 12 chromosomes in an animal cell in the G1 stage of the cell cycle, what is the
haploid and diploid number of chromosomes for this organism?
a) 12 and 6
b) 6 and 12
c) 24 and 12
d) 12 and 24
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11/16/2024 10:16 AM
e) cannot tell from the information given - answer✔b) 6 and 12
Chromosomes that aren't sex chromosomes are known collectively as:
a) X chromosomes
b) autosomes
c) Y chromosomes
d) karyotypes
e) alleles - answer✔b) autosomes
Which of the following organelles do not contain DNA?
a) endoplasmic reticulum
b) mitochondria
c) nuclei
d) chloroplasts
e) none of the above contain DNA - answer✔a) endoplasmic reticulum
Which of the following is not true of sister chromatids?
a) They arise by replication during S phase.
b) They segregate from each other during each mitotic anaphase.
c) They contain identical versions of the same genetic information
d) They segregate from each other during meiosis I.
e) They are joined during prophase and metaphase at their common centromere. - answer✔d)
They segregate from each other during meiosis I.
At the end of the first meiotic division, each chromosome consists of:
a) chiasmata
b) a homologous chromosome pair
c) four copies of each DNA molecule
d) two chromatids
e) a pair of polar microtubules - answer✔d) two chromatids
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