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DNA Replication MCQ

The success of dna replication is assessed during the ______ phase.

Answer

Correct Answer: G2

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Dna polymerases use their ________ activity to remove a mismatched basepair.

3’ -> 5’ exonuclease

5’ -> 3’ exonuclease

RNase

Protease

Answer

Correct Answer: 3’ -> 5’ exonuclease

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Dna is turned on or off by surrounding chemical tags called the _____.

Ecological

Epigenome

Rainbow

Attachment

Answer

Correct Answer: Epigenome

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Dna microarrays have made a huge impact on genomic studies because they _____.

Can be used to eliminate the function of any gene in the genome.

Can be used to introduce entire genomes into bacterial cells.

Allow the expression of many or even all of the genes in the genome to be compared at once

Allow physical maps of the genome to be assembled in a very short time.

Answer

Correct Answer: Allow the expression of many or even all of the genes in the genome to be compared at once

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Replication is the synthesis of _ and transcription is the synthesis of _.

An exact copy of DNA; an RNA copy of DNA

DNA is replicated, whereas RNA is translated.

One or more phosphates, a sugar, and a base.

Essential components of a nucleic acid.

Answer

Correct Answer: An exact copy of DNA; an RNA copy of DNA

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In a dna molecule, the phosphate serves ________.

As a code

As nucleotides

To hold the molecular backbone together

None of the above

Answer

Correct Answer: To hold the molecular backbone together

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The level of dna packaging brought about by the formation of _____ looks like beads on a string.

Nucleosomes

Scaffolds

1400-nm chromatin fibers

2-nm chromatin fibers

30-nm chromatin fibers

Answer

Correct Answer: Nucleosomes

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When dna replication begins, _____.

Semi conservative

Full conservative

Bidirectional

None of these

Answer

Correct Answer: Semi conservative

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Dna is synthesized through a process known as _____

Semiconservative replication

Conservative replication

Translation

Transcription

Answer

Correct Answer: Semiconservative replication

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A new dna strand elongates only in the 5' to 3' direction because _____.

DNA polymerase begins adding nucleotides at the 5' end of the template.

Okazaki fragments prevent elongation in the 3' to 5' direction.

Replication must progress toward the replication fork.

DNA polymerase can only add nucleotides to the free 3' end

Answer

Correct Answer: DNA polymerase can only add nucleotides to the free 3' end

Note: This Question is unanswered, help us to find answer for this one

DNA Replication MCQ

The success of dna replication is assessed during the ______ phase.

Dna polymerases use their ________ activity to remove a mismatched basepair.

Dna is turned on or off by surrounding chemical tags called the _____.

Dna microarrays have made a huge impact on genomic studies because they _____.

Replication is the synthesis of _______ and transcription is the synthesis of _______.

In a dna molecule, the phosphate serves ________.

The level of dna packaging brought about by the formation of _____ looks like beads on a string.

When dna replication begins, _____.

Dna is synthesized through a process known as _____

A new dna strand elongates only in the 5' to 3' direction because _____.

Replication is the synthesis of _ and transcription is the synthesis of _.