CMB 352 Final Exam
With Solution
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
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
With Solution
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
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
