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DNA Structure and Replication

DNA Structure and Replication
What is the IUPAC code for an A, C, T ambiguity in a nucleic acid sequence?

H
S
B
None of these

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DNA Structure and Replication
In DNA, guanine pairs with

Adenine
Uracil
Cytosine
Thymine

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DNA Structure and Replication
Which of the following are short nucleotides strands made by DNA polymerase working in the opposite direction of the replication fork?

Primers
Leading strands
Okazaki fragments
Lagging strand

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DNA Structure and Replication
What does ligase do during replication of DNA?

Joins nicks in DNA strands
Synthesizes the lagging strand
Digests mRNA when it is no longer needed
Makes copies of mRNA from DNA

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DNA Structure and Replication
Which DNA polymerase removes RNA primers in DNA synthesis?

Polymerase II
none of these
Polymerase III
Polymerase I

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DNA Structure and Replication
DNA segments capable of moving from one place in the genome to another is known as

transposons
retrovirus
moving elements
introns

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