1651. What is the rate of mutation per round of DNA replication?
A. 1 in 1,000 base pairs
B. 1 in 10,000 base pairs
C. 1 in 1,000,000 base pairs
D. 1 in 1,000,000,000 base pairs *
1652. Which of the subunits of RNA polymerase holoenzyme is responsible for promoter recognition?
A. The beta subunit
B. The sigma subunit *
C. The gamma subunit
D. The delta subunit
1653. Which of the following is an example of a missense mutation?
A. UAC TO UAG
B. AAA TO UAA
C. UGC TO UCC *
D. UAA TO UGA
1654. The structure of tRNA resembles a(n):
A. Cloverleaf *
B. L
C. A helix
D. B helix
1655. Which of the following is not a DNA base?
A. Thymine
B. Uracil *
C. Adenine
D. Guanine
1656. What provides the energy that drives the addition of nucleotides to a growing DNA chain during replication?
A. The release of a pyrophosphate
B. The hydrolysis of ATP
C. The hydrolysis of a pyrophosphate *
D. The hydrolysis of GTP
1657. What is the name of the molecule that is added to the 5 ends of eukaryotic RNA transcripts?
A. ATP
B. snRNP
C. GTP *
D. Phosphate
1658. What is the name of the enzyme responsible for helping change tRNA molecules?
A. Guanyl transferase
B. Polymerase
C. Helicase
D. Aminoacyl-tRNA synthase *
1659. Which of the following is not an RNA base?
A. Adenine
B. Uracil
C. Thymine *
D. Cytosine
1660. The strand on which DNA replication is continuous is called the :
A. Leading strand *
B. Lagging strand
C. Major strand
D. Minor Strand