CAMPBELL BIOLOGY CHAPTER 12 TEST BANK
QUESTIONS AND COMPLETE SOLUTIONS
1) Eukaryotic chromosomes are composed of which of the following macromolecules? - ANS-C) DNA and
proteins
2) Starting with a fertilized egg (zygote), a series of six cell divisions would produce an early embryo with
how many cells? - ANS-D) 64
3) In a diploid cell with 5 chromosome pairs (2n = 10), how many centromeres will be found in a nucleus
at G2 of the cell division cycle? - ANS-B) 10
5) G1 is associated with which of the following cellular events? - ANS-A) normal growth and cell function
9) Metaphase is characterized by ________. - ANS-A) alignment of chromosomes on the equator of the
cell
13) FtsZ is a bacterial cytoskeletal protein that forms a contractile ring involved in binary fission. Its
function is analogous to ________. - ANS-A) the cleavage furrow of eukaryotic animal cells
15) In a diploid cell with 5 chromosome pairs (2n = 10), how many sister chromatids will be found in a
nucleus at prophase of mitosis? - ANS-C) 20
16) If there are 40 centromeres in a cell at anaphase of mitosis, how many chromosomes will be found
in each daughter cell following cytokinesis? - ANS-B) 20
17) If a cell at metaphase of mitosis contains 20 sister chromatids, how many chromosomes will be
present in a G1 cell? - ANS-B) 10
19) Movement of the chromosomes during anaphase would be most affected by a drug that prevents
which of the following events in mitosis and cell division? - ANS-C) shortening of microtubules
20) Measurements of the amount of DNA per nucleus were taken on a large number of cells from a
growing fungus. The measured DNA levels ranged from 3 to 6 picograms per nucleus. In which stage of
the cell cycle did the nucleus contain 6 picograms of DNA? - ANS-C) G2
21) A group of cells is assayed for DNA content immediately following mitosis and is found to have an
average of 8 picograms of DNA per nucleus. How many picograms of DNA would be found in a nucleus
at prophase of mitosis? - ANS-C) 16
QUESTIONS AND COMPLETE SOLUTIONS
1) Eukaryotic chromosomes are composed of which of the following macromolecules? - ANS-C) DNA and
proteins
2) Starting with a fertilized egg (zygote), a series of six cell divisions would produce an early embryo with
how many cells? - ANS-D) 64
3) In a diploid cell with 5 chromosome pairs (2n = 10), how many centromeres will be found in a nucleus
at G2 of the cell division cycle? - ANS-B) 10
5) G1 is associated with which of the following cellular events? - ANS-A) normal growth and cell function
9) Metaphase is characterized by ________. - ANS-A) alignment of chromosomes on the equator of the
cell
13) FtsZ is a bacterial cytoskeletal protein that forms a contractile ring involved in binary fission. Its
function is analogous to ________. - ANS-A) the cleavage furrow of eukaryotic animal cells
15) In a diploid cell with 5 chromosome pairs (2n = 10), how many sister chromatids will be found in a
nucleus at prophase of mitosis? - ANS-C) 20
16) If there are 40 centromeres in a cell at anaphase of mitosis, how many chromosomes will be found
in each daughter cell following cytokinesis? - ANS-B) 20
17) If a cell at metaphase of mitosis contains 20 sister chromatids, how many chromosomes will be
present in a G1 cell? - ANS-B) 10
19) Movement of the chromosomes during anaphase would be most affected by a drug that prevents
which of the following events in mitosis and cell division? - ANS-C) shortening of microtubules
20) Measurements of the amount of DNA per nucleus were taken on a large number of cells from a
growing fungus. The measured DNA levels ranged from 3 to 6 picograms per nucleus. In which stage of
the cell cycle did the nucleus contain 6 picograms of DNA? - ANS-C) G2
21) A group of cells is assayed for DNA content immediately following mitosis and is found to have an
average of 8 picograms of DNA per nucleus. How many picograms of DNA would be found in a nucleus
at prophase of mitosis? - ANS-C) 16
