User: The enzyme that uncoils and separates the two DNA strands for replication is called

Question 1Select one:

a.
initiator protein


b.
SSB protein


c.
Helicase enzyme


d.
RNA primer

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Chromosome with centromere located at the terminal end of the chromosome is called
Question 2Select one:

a.
Acrocentric

b.
metacentric

c.
submetacentric

d.
telocentric
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DNA is made up of two polynucleotide strands.
Question 3Select one:
True
False
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DNA replication starts by the synthesis of a short RNA strand called
Question 4Select one:

a.
RNA primer

b.
helicae

c.
template strand

d.
none of these
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Chromosomes with one centromere is called
Question 5Select one:

a.
Telocentric

b.
monocentric

c.
polycentric

d.
acrocentric
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Region of the chromatin which appears coiled during interphase is called
Question 6Select one:

a.
Heterochromatin

b.
euchromatin

c.
telomere

d.
satellite
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Proof reading to look for errors in DNA replication is done by enzymes
Question 7Select one:

a.
DNA polymerase I & II

b.
DNA polymerase α

c.
DNA polymerase β

d.
all of these
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Euchromatin possess functional genes.

Question 8Select one:
True
False
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Heterochromatin do not contain functional genes.

Question 9Select one:
True
False
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Chromosomes with centromere located in the middle is called
Question 10Select one:

a.
Acrocentric

b.
metacentric

c.
submetacentric

d.
telocentric
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Assistant: Here are the answers to your questions:

**Question 1:** The enzyme that uncoils and separates the two DNA strands for replication is called  
**c. Helicase enzyme**

**Question 2:** Chromosome with centromere located at the terminal end of the chromosome is called  
**d. telocentric**

**Question 3:** DNA is made up of two polynucleotide strands.  
**True**

**Question 4:** DNA replication starts by the synthesis of a short RNA strand called  
**a. RNA primer**

**Question 5:** Chromosomes with one centromere is called  
**b. monocentric**

**Question 6:** Region of the chromatin which appears coiled during interphase is called  
**a. Heterochromatin**

**Question 7:** Proofreading to look for errors in DNA replication is done by enzymes  
**a. DNA polymerase I & II**

**Question 8:** Euchromatin possess functional genes.  
**True**

**Question 9:** Heterochromatin do not contain functional genes.  
**True**

**Question 10:** Chromosomes with centromere located in the middle is called  
**b. metacentric**
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DNA contains deoxyribose sugar.
Question 11Select one:
True
False
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The replication model of DNA where the daughter DNA have one parental strand and one newly formed strand is called
Question 12Select one:

a.
semi conservative model

b.
conservative model

c.
dispersive model

d.
none of these
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RNA contains deoxyribose sugar.
Question 13Select one:
True
False
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Prokaryotic cells have only one origin of replication.
Question 14Select one:
True
False
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Complimentary base pairs in DNA molecule is
Question 15Select one:

a.
adenine & thymine

b.
cytosine & thymine

c.
guanine & adenine

d.
none of these
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Prokaryotic cells have only one origin of replication.
Question 16Select one:
True
False
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RNA nucleotides is made up of sugars called
Question 17Select one:

a.
deoxyribose sugar

b.
ribose sugar

c.
hexose sugar

d.
none of these
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DNA contains deoxyribose sugar.
Question 18Select one:
True
False
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The purines are
Question 19Select one:

a.
adenine & guanine

b.
cytosine, thymine, uracil

c.
all of these

d.
none of these
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The replication model of DNA where the daughter DNA have one parental strand and one newly formed strand is called
Question 20Select one:

a.
semi conservative model

b.
conservative model

c.
dispersive model

d.
none of these
Assistant: