07/11/2024 10:07
BIO340 2 Mitosis and Meiosis Exam Question And
Reviewed Answers
As in most areas of biology, the study of mitosis and the cell cycle involves a lot of new
terminology. Knowing what the different terms mean is essential to understanding and
describing the processes occurring in the cell.
Drag the terms on the left to correctly complete these sentences. Not all the terms will be
used - answers✔✔1. sister chromatids
2. centromeres
3. kinetochores
4. interphase
5. mitotic spindles
6. chromatin
7. cytokinesis
8. centrosomes
As the chromosomes of a parent cell are duplicated and distributed to the two daughter cells
during cell division, the structure of the chromosomes changes.
Answer the three questions for each phase of the cell cycle by dragging the yes and no labels
to the appropriate locations in the table.
Note: Assume that by the end of the M phase, the parent cell has not yet divided to form two
daughter cells. - answers✔✔sister chromatids present? no yes yes yes no
dna condensed? no no no yes yes
dna content per cell? no yes yes yes yes
Can you recognize the eight stages of meiosis based on the location and behavior of the
chromosomes?
, ©JUSTTRACY EXAM SOLUTIONS
07/11/2024 10:07
Drag the diagrams of the stages of meiosis onto the targets so that the four stages of meiosis I
and the four stages of meiosis II are in the proper sequence from left to right. (Note that only
one of the two daughter cells is shown for meiosis II.) - answers✔✔
Crossing over plays a critical role in increasing the genetic variation among offspring of
sexual reproduction. It is important to understand how crossing over occurs and its
consequences in meiosis. Look carefully at the diagrams depicting different stages in meiosis
in a cell where 2n = 6. Assume that the red chromosomes are of maternal origin and the blue
chromosomes are of paternal origin. - answers✔✔a. anaphase II
b. metaphase II
c. prophase I
d. metaphase I
e. possible
f. impossible
g. impossible
h. possible
Part complete
The parent cell that enters meiosis is diploid, whereas the four daughter cells that result are
haploid.
Which statement correctly describes how cellular DNA content and ploidy levels change
during meiosis I and meiosis II? (Note: Ignore any effects of crossing over.) -
answers✔✔DNA content is halved in both meiosis I and meiosis II. Ploidy level changes
from diploid to haploid in meiosis I, and remains haploid in meiosis II.
Separation of sister chromatids occurs _______. - answers✔✔at anaphase in mitosis and
anaphase II in meiosis
The end result of meiosis is four haploid daughter cells. - answers✔✔True
Novel combinations of genes can arise from _______. - answers✔✔reciprocal exchange of
DNA between homologs during prophase I