Chapter 10 – How Cells Divide
Chapter 10
How Cells Divide
Multiple Choice Questions
1. In bacterial cell division, the cell divides into two nearly equal halves. This process is
referred to as:
2. How does the organization of the bacterial genome differ from the organization of the
eukaryotic genome?
Chapter 10 – How Cells Divide
3. The division of a bacterial cell occurs as the:
4. If a cell contained a mutation in the gene that encodes FtsZ, which process would be
affected?
Chapter 10 – How Cells Divide
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you know about FtsZ? How does it relate to the question?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 10 – How Cells Divide
5. The accommodation of the very long DNA strands that are part of a chromosome into the
limited space of the nucleus is achieved by coiling the DNA around beads of histones into
repeating subunits. These DNA-wrapped histones are called:
6. The point of constriction on chromosomes that contains certain repeated DNA sequences
that bind specific proteins is called:
Chapter 10 – How Cells Divide
7. Eukaryotic chromosomes are composed of a complex of 60% protein and 40% DNA. This
complex is referred to as:
8. The number of chromosomes in diploid eukaryotic cellsrev:
10_20_2014_QC_57039
9. A person whose cells all contain a chromosome number of 2n+1 most likely has what type
of condition?
Chapter 10 – How Cells Divide
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you know about the number of chromosomes in a human cell? How does it
relate to the question?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
.
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 10 – How Cells Divide
10. In later chapters, you will learn more about the regulation of gene expression. One way
to regulate gene expression is to make changes to the histone proteins to alter how tightly the
DNA is coiled and wrapped. The more tightly coiled and wrapped a particular region of DNA
is, the less likely it is that the genes in that region will be expressed. Bearing this in mind,
how tightly do you think regions of heterochromatin are compacted?
Chapter 10 – How Cells Divide
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you know about gene expression? How does it relate to the question?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 10 – How Cells Divide
11. You are assembling a model of a chromosome, but begin having some trouble when you
get to the step of forming chromatin loops. If you are unable to resolve this problem, what
step of chromosome structure would you be unable to achieve?
Chapter 10 – How Cells Divide
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you know about chromosome structure? How does it relate to the question?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 10 – How Cells Divide
12. A scientist wants to study histones. Histones are:
13. The two copies of each type of chromosome found in normal somatic (body) cells in an
organism, throughout the cell cycle, are called:
14. Before cell division of somatic cells, each chromosome must be replicated. After
replication, the resulting two parts of each chromosome are held together by cohesin at the
centromere. These two parts are referred to as:
Chapter 10 – How Cells Divide
15. These structures are held together by cohesin:
16. A cell biologist produces a karyotype of mouse somatic cells arrested in mitosis. She
sees 40 chromosomes, which is completely normal for mice. Based on this information, what
is the haploid number of chromosomes for mice?
Chapter 10 – How Cells Divide
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you know about diploid cells? How does it relate to the question?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 10 – How Cells Divide
17. If there are 32 sister chromatids in a normal somatic cell, what is the haploid number for
that cell?
Chapter 10 – How Cells Divide
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you know about sister chromatids? How does it relate to the question?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 10 – How Cells Divide
18. If there are 32 sister chromatids in a normal somatic cell, how many chromosomes are
there?
Chapter 10 – How Cells Divide
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you know about sister chromatids? How does it relate to the question?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 10 – How Cells Divide
19. A somatic cell from a garden pea normally contains 14 chromosomes. How many sister
chromatids would that cell contain during G1 of the cell cycle?
Chapter 10 – How Cells Divide
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you know about sister chromatids? How does it relate to the question?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
sister chromatids. It will not matter how many chromosomes the cell has.
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 10 – How Cells Divide
20. A somatic cell from a corn plant normally contains 20 chromosomes. How many sister
chromatids would that cell contain during G2 of the cell cycle?