Why has dihydrofolate reductase been identified as a potential target for chemotherapy in the treatment of cancer?
A) It is a hormone that is a primary control agent of the rate of mitosis.
B) It is a DNA binding protein that activates a cancer oncogene.
C) It is essential in DNA synthesis.Cell division will not occur without it.
D) It selectively binds to a receptor on the surface of cancer cells and inactivates them.
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Q50: Which is the strongest oxidizing agent?
A)Ubiquinone.
B)NAD+.
C)FMN.
D)Vitamin K.
Q51: Which structure in shown? Q52: Which vitamin is shown below? Q53: What is another name for vitamin B12? Q54: Which is the largest B vitamin? Q56: What is the prosthetic group of the Q57: Which in not a lipid-soluble vitamin? Q58: Vitamin D helps control the utilization of Q59: Vitamin K is important in the _. Q60: Rickets in children and osteomalacia in adults
A)Thiamine.
B)Tetrahydrofolate.
C)Cobalamin.
D)Biotin.
A)B1
B)B6
C)B8
D)B12
A)A
B)C
C)E
D)K
A)synthesis
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