Biochemistry Exam 5

Front 1

The two strands of a DNA molecule are connected by:

Back 1

Hydrogen bonds between the bases of one strand and the bases of the second strand

Front 2

All of the following combinations of nucleotides are examples of a normal-base pairing except:
a. A (DNA) to T (DNA)
b. G (DNA) to C (DNA)
c. T (RNA) to A (DNA)
d. C (RNA) to G (DNA)
e. U (RNA) to T (DNA)

Back 2

c. T (RNA) to A (DNA)

Front 3

Which is not a nucleotide in DNA?
a. adenine
b. guanine
c. uracil
d. thymine
e. cytosine

Back 3

c. uracil

Front 4

What are the base-pairing rules for DNA?
a. A-G, T-C
b. A-C, T-G
c. A-U, C-G
d. A-T, G-C

Back 4

d. A-T, G-C

Front 5

A DNA stand having the sequence C-G-A-T-T-G would be complementary to the sequence:
a. C-G-A-T-T-G
b. G-C-T-A-A-G
c. T-A-G-C-C-T
d. G-C-T-A-A-C

Back 5

d. G-C-T-A-A-C

Front 6

When DNA replication begins,
a. two DNA strands unwind from each other
b. two DNA strands condense for base transfers
c. two DNA molecules bond
d. old strands move to find new strands

Back 6

a. two DNA strands unwind from each other

Front 7

DNA replication requires
a. free nucleotides
b. new hydrogen bonds
c. many enzymes
d. all of the above

Back 7

d. all of the above

Front 8

DNA Polymerase
a. two nucleotide strands that are twisted together
b. A with T, G with C
c. hereditary material duplicated
d. replication enzyme

Back 8

d. replication enzyme

Front 9

Constancy in base pairing:
a. two nucleotide strands that are twisted together
b. A with T, G with C
c. hereditary material duplicated
d. replication enzyme

Back 9

b. A with T, G with C

Front 10

Replication
a. two nucleotide strands that are twisted together
b. A with T, G with C
c. hereditary material duplicated
d. replication enzyme

Back 10

c. hereditary material duplicated

Front 11

DNA double helix:
a. two nucleotide strands that are twisted together
b. A with T, G with C
c. hereditary material duplicated
d. replication enzyme

Back 11

a. two nucleotide strands that are twisted together