Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 10.6, Problem 2COMQ
The role of cohesin is to
a. make chromosomes more compact.
b. allow for the replication of chromosomes.
c. hold sister chromatids together.
d. promote the separation of sister chromatids.
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The _____ is the physical location that sister chromatids are held together and where microtubules physically attach during mitosis.
a. centriole
b. centrosome
c. centromere
d. chromatin
A bivalent consists of:
A
Two chromatids and one centromere
B
Four chromatids and two centromeres
C
Two chromatids and two centromeres
D
Four chromatids and four centromeres
The metaphase to anaphase transition involves
a. new force being generated to pull the chromatids apart.
b. an increase in force on sister chromatids to pull them apart.
c. completing DNA replication of centromeres allowing chromosomes to be pulled apart.
d. loss of cohesion between sister chromatids.
Chapter 10 Solutions
Genetics: Analysis and Principles
Ch. 10.1 - 1. A bacterial chromosome typically contains
a. a...Ch. 10.2 - Mechanisms that make the bacterial chromosome more...Ch. 10.2 - 2. Negative supercoiling may enhance activities...Ch. 10.2 - 3. DNA gyrase
a. promotes negative supercoiling....Ch. 10.3 - 1. The chromosomes of eukaryotes typically contain...Ch. 10.4 - Which of the following is an example of a...Ch. 10.5 - What are the components of a single nucleosome? a....Ch. 10.5 - 2. In Noll’s experiment to test the...Ch. 10.5 - Prob. 3COMQCh. 10.5 - Prob. 4COMQ
Ch. 10.6 - Prob. 1COMQCh. 10.6 - 2. The role of cohesin is to
a. make chromosomes...Ch. 10 - Prob. 1CONQCh. 10 - Prob. 2CONQCh. 10 - 3. Describe the mechanisms by which bacterial DNA...Ch. 10 - Why is DNA supercoiling called supercoiling rather...Ch. 10 - Prob. 5CONQCh. 10 - Prob. 6CONQCh. 10 - Prob. 7CONQCh. 10 - Prob. 8CONQCh. 10 - Prob. 9CONQCh. 10 - 10. What is the function of a centromere? At what...Ch. 10 - Prob. 11CONQCh. 10 - 12. Describe the structures of a nucleosome and a...Ch. 10 - Beginning with the G1 phase of the cell cycle,...Ch. 10 - Draw a picture depicting the binding between the...Ch. 10 - 15. Compare heterochromatin and euchromatin. What...Ch. 10 - 16. Compare the structure and cell localization of...Ch. 10 - 17. What types of genetic activities occur during...Ch. 10 - Lets assume the linker region of DNA averages 54bp...Ch. 10 - 19. In Figure 10.12, what are we looking at in...Ch. 10 - 20. What are the roles of the core histone...Ch. 10 - A typical eukaryotic chromosome found in humans...Ch. 10 - Which of the following terms should not be used to...Ch. 10 - Discuss the differences between the compaction...Ch. 10 - 24. What is an SMC complex? Describe two...Ch. 10 - Two circular DNA molecules, which we can call...Ch. 10 - 2. Let’s suppose you have isolated DNA from a cell...Ch. 10 - 3. We seem to know more about the structure of...Ch. 10 - In Nolls experiment of Figure 10.11, explain where...Ch. 10 - When chromatin is treated with a salt solution of...Ch. 10 - 6. Let’s suppose you have isolated chromatin from...Ch. 10 - If you were given a sample of chromosomal DNA and...Ch. 10 - Consider how histone proteins bind to DNA and then...Ch. 10 - In Chapter 23, the technique of fluorescence in...Ch. 10 - Bacterial and eukaryotic chromosomes are very...Ch. 10 - The prevalence of highly repetitive sequences...Ch. 10 - Discuss and make a list of the similarities and...
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- What may be expected to happen chromosomally and genetically to: a. an unfertilized egg that undergoes mitosis, but fails to undergo cytokinesis b. a cell which formed a tripolar spindle c. a chromosome that lost its centromere d. a chromosomes that contains two centromeres.arrow_forwardWhich of the following is not true regarding cytokinesis?* A.Simultaneously happen with the telophase. B.It is the division of cytoplasm. C.The same with the interkinesis. D.Leads to the formation of cleavage furrow.arrow_forwardWhich of the following is the main reason why DNA must exist in chromosome form? a.)To favor the formation of sister chromatids b.)To allow the protein histones to carry out its task c.)To avoid the genetic material to be tangled away during cell division d.)To promote the formation of spindle fibersarrow_forward
- Which of the following statements are true? a. after contromeres divide, chromatids are known as chromosomes b. centromeres are seperated during anaphase c. during anaphase, some microtubles become shorter and pull sister chromatids in opposite direction d. all these are truearrow_forwardWhich of the following term produces the spindle fibers which pulled the sister chromatids towards the opposite poles? a.)Centriole b.)Centromere c.)Centrosome d.)Astersarrow_forwardThe first suggestion that chromosomes may physically exchange segments came from the microscopic identification of ________. a. synapsis b. sister chromatids c. chiasmata d. allelesarrow_forward
- The molecular tether that links sister chromatids of a duplicated chromosome to each other is (a) condensin (b) actin (c) myosin (d) cohesin (e) actomyosinarrow_forwardThe role of the APC to get past the metaphase/ anaphase checkpoint is... Select one: a. to initiate gene expression of proteins involved in DNA replication. b. Add phosphates to the MPF to cause intermediate filaments to break down, free DNA to move in the cell. c. to add phosphate to intermediate filaments causing them to reform into the nuclear envelope d. add ubiquitin to cohesins allowing the sister chromatids to splitarrow_forwardWhat is the role of cohesin proteins in cell division? a. They organize the DNA of the chromosomes into highly condensed structures. b. They hold the DNA of the sister chromatids together. c. They help the cell divide into two daughter cells. d. They connect microtubules and chromosomes.arrow_forward
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