DNA Replication MCQs
DNA Replication MCQs
Try to answer these DNA Replication MCQs and check your understanding of the DNA Replication subject. Scroll down and let's begin!
1: A new dna strand elongates only in the 5' to 3' direction because _____.
A. DNA polymerase begins adding nucleotides at the 5' end of the template.
B. Okazaki fragments prevent elongation in the 3' to 5' direction.
C. Replication must progress toward the replication fork.
D. DNA polymerase can only add nucleotides to the free 3' end
2: Dna is synthesized through a process known as _____
A. Semiconservative replication
B. Conservative replication
C. Translation
D. Transcription
3: When dna replication begins, _____.
A. Semi conservative
B. Full conservative
C. Bidirectional
D. None of these
4: The level of dna packaging brought about by the formation of _____ looks like beads on a string.
A. Nucleosomes
B. Scaffolds
C. 1400-nm chromatin fibers
D. 2-nm chromatin fibers
E. 30-nm chromatin fibers
5: In a dna molecule, the phosphate serves ________.
A. As a code
B. As nucleotides
C. To hold the molecular backbone together
D. None of the above
6: Replication is the synthesis of _______ and transcription is the synthesis of _______.
A. An exact copy of DNA; an RNA copy of DNA
B. DNA is replicated, whereas RNA is translated.
C. One or more phosphates, a sugar, and a base.
D. Essential components of a nucleic acid.
7: Dna microarrays have made a huge impact on genomic studies because they _____.
A. Can be used to eliminate the function of any gene in the genome.
B. Can be used to introduce entire genomes into bacterial cells.
C. Allow the expression of many or even all of the genes in the genome to be compared at once
D. Allow physical maps of the genome to be assembled in a very short time.
8: Dna is turned on or off by surrounding chemical tags called the _____.
A. Ecological
B. Epigenome
C. Rainbow
D. Attachment
9: Dna polymerases use their ________ activity to remove a mismatched basepair.
A. 3’ -> 5’ exonuclease
B. 5’ -> 3’ exonuclease
C. RNase
D. Protease
10: The success of dna replication is assessed during the ______ phase.
A. G1
B. M
C. C
D. S
E. G2
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DNA Replication MCQs
