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BIO457 Ch10 Chromosome Organization

Total questions: 12

Worksheet time: 6mins

Name
Class
Date
1.

Which of the following is not found in bacterial chromosomes

a)

Circular, plasmids

b)

Multiple origins of replication

c)

few thousand genes

d)

repetitive sequences

2.

Which is not a part of bacterial compaction?

a)

Formation of Loop Domains

b)

Supercoiling

c)

30-nm fiber

3.

Enzyme that relaxes positive supercoils and makes negative supercoils

a)

DNA Gyrase

b)

Topoisomerase I

c)

Cohesin

d)

Condensin

4.

Enzyme that relaxes negative supercoils

a)

DNA Gyrase

b)

Topoisomerase I

c)

Cohesin

d)

Condensin

5.

Part of chromosome where kinetochores attach

a)

Telomere

b)

Centromere

c)

Centrosome

d)

Origin of replication

6.

Contain specialized sequences located at both ends of the linear chromosome

a)

Telomere

b)

Centromere

c)

Centrosome

d)

Origin of replication

7.

Which is not a component of the histone octamer

a)

H1

b)

H2

c)

H3

d)

H4

e)

All are part of the histone octamer

8.

Which is not a method of eukaryotic DNA compaction

a)

30-nm fiber

b)

Attachment to nuclear scaffold proteins

c)

Nucleosomes

d)

Radial Loop Domains

e)

All are methods of eukaryotic DNA compaction

9.

Tightly packed regions of the chromosome that are transcriptionally inactive

a)

Condensin

b)

Cohesin

c)

Euchromatin

d)

Heterochromatin

10.

Less compacted regions of the chromosome that are transcriptionally active

a)

Condensin

b)

Cohesin

c)

Euchromatin

d)

Heterochromatin

11.

Protein involved in compacting chromosomes found outside the nucleus

a)

Condensin

b)

Cohesin

c)

Histones

d)

DNA gyrase

12.

Protein involved in promoting binding of sister chromatids in metaphase chromosomes

a)

Condensin

b)

Cohesin

c)

Histones

d)

DNA gyrase