Exam (elaborations)
BIO 340 2 Mitosis and Meiosis Questions And 100% Correct Answers
- Course
- Institution
BIO 340 2 Mitosis and Meiosis Questions And 100% Correct Answers...
[Show more]
Content preview
BIO 340 2 Mitosis and Meiosis Questions And100% Correct Answers
As in most areas of biology, the study of mitosis and the cell cycle involves a lot of new
terminology. Understanding what the different terms mean is central to understanding
and describing the processes occurring in the cell.
Drag the terms on the left to correctly complete these sentences. Not all the the terms
will be used - ANSWER 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, changes occur in the appearance of the chromosomes. Drag
yes and no labels to the correct locations in the table to answer the three questions for
each phase of the cell cycle.
Note: Assume that by the end of the M phase the parent cell has not yet divided to form
two daughter cells. ANSWER 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 identify the eight stages of meiosis, based on the location and behavior of the
chromosomes?
Drag the drawings of the stages of meiosis to the targets, so that the four stages of
meiosis I and the four stages of meiosis II are in the correct order from left to right.
, NOTE: Only one of the two daughter cells is shown for meiosis II.
Crossing over is essential to increase the variability in the genetic composition of
offspring of sexual reproduction. It is important to know how crossing over occurs and
its results in meiosis. Focus on the illustrations of different stages in meiosis in a cell in
which 2n = 6. For this problem, let the red chromosomes be of maternal origin and the
blue chromosomes be of paternal origin. - SOLUTION 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, while the four daughter cells that result
are haploid.
Which of the following statements correctly describes the change in cellular DNA
content and ploidy level during meiosis I and meiosis II? (Note: For the purposes of this
question, you should neglect any DNA changes that occur during crossing over.) -
ANSWER DNA content is reduced by half in both meiosis I and meiosis II. Ploidy changes
from diploid to haploid during meiosis I and remains haploid during meiosis II.
Separation of sister chromatids occurs _______. - ANSWER at anaphase in mitosis and
anaphase II in meiosis
The outcome of meiosis is four haploid daughter cells. - ANSWER True
New combinations of genes can appear because of _______. - ANSWER reciprocal
exchange of DNA between homologs during prophase I
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Easton. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
66579 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now
