Genetics, DNA, and Molecular Biology

Practice Questions

GRE Subject Test: Biology › Genetics, DNA, and Molecular Biology

Page 1 of 24
10 of 231
1

Hemophilia A is a blood clotting disorder that is usually inherited as an X-linked recessive trait. If a woman who does not have hemophilia A has a daughter with a man who does not have hemophilia A, what is the probability that the daughter will have hemophilia A if the maternal grandfather did have hemophilia A?

2

Hemophilia A is a blood clotting disorder that is usually inherited as an X-linked recessive trait. If a woman who does not have hemophilia A has a daughter with a man who does not have hemophilia A, what is the probability that the daughter will have hemophilia A if the maternal grandfather did have hemophilia A?

3

Hemophilia A is a blood clotting disorder that is usually inherited as an X-linked recessive trait. If a woman who does not have hemophilia A has a daughter with a man who does not have hemophilia A, what is the probability that the daughter will have hemophilia A if the maternal grandfather did have hemophilia A?

4

Which of the following is true about the effects of epigenetics on gene expression?

5

Which prokaryotic polymerase is primarily responsible for filling in DNA nucleotides into the gap created by the removal of RNA primers?

6

Which of the following best describes an oncogene?

7

An error occurs during DNA replication, resulting in the insertion of a base pair. Replication of the original 3' DNA strand (template) produces a mutant 3' strand (mutant), as diagrammed below:

Template

3' - AUGGCCATTTTTATA - 5'

Mutant

3'- AUGCGCCATTTTTATA - 5'

Of the answers below, which best describes the type of mutation depicted above?

8

Which of the following is true about the effects of epigenetics on gene expression?

9

An error occurs during DNA replication, resulting in the insertion of a base pair. Replication of the original 3' DNA strand (template) produces a mutant 3' strand (mutant), as diagrammed below:

Template

3' - AUGGCCATTTTTATA - 5'

Mutant

3'- AUGCGCCATTTTTATA - 5'

Of the answers below, which best describes the type of mutation depicted above?

10

Which prokaryotic polymerase is primarily responsible for filling in DNA nucleotides into the gap created by the removal of RNA primers?

Page 1 of 24
Return to subject