Because of base pairing in DNA, the percentage of

thymine in DNA is about equal to the percentage of adenine.

Watson and Crick discovered the two strands in DNA

run in antiparallel directions.

DNA replication results in two DNA molecules,

each with one new strand and one original strand.

Which of the following is a nucleotide found in DNA?

deoxyribose + phosphate group + cytosine

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2016 Biology Midterm 5

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Questions 15

Answers

1
In Figure 7, what nucleotide is going to be added at point 1, opposite from thymine?
cytosine
thymine
guanine
adenine
2
What would happen to the percentage of G in Figure 6 if the percentage of A rose to 25%?
G would drop to 25%
neither of these
G would drop to 19%
both of these
3
During DNA replication, a DNA strand that has the bases CTAGGT produces a strand with the bases
AGCTTG.
GAUCCA.
TCGAAC.
GATCCA.
4
Which of the following forms a base pair with thymine?
adenine
guanine
cytosine
deoxyribose
5
Figure 5 shows the structure of
a spaghetti noodle.
a DNA molecule.
a cell membrane.
follicle
6
Because of base pairing in DNA, the percentage of
None of the above
adenine in DNA is greater than the percentage of thymine.
thymine in DNA is about equal to the percentage of adenine.
adenine in DNA is about equal to the percentage of guanine.
7
What stores information in a cell?
carbohydrates
proteins
DNA
lipids
8
What happens when a piece of DNA is missing?
All of the above.
Genetic information moves to Texas.
Genetic information is lost.
Genetic information is tripled.
9
In Figure 7, what enzyme is building in base pairs to the strand?
nucleosomes
DNA polymerase
Bob the builderase
chromosomes
10
Watson and Crick discovered the two strands in DNA
run in a parallel direction.
run in rectangular directions.
run in random crazy directions.
run in antiparallel directions.
11
DNA replication results in two DNA molecules,
each with one new strand and one original strand.
one with two new strands and the other with three original.
each with two new strands.
each with two original strands.
12
Which of the following is a nucleotide found in DNA?
deoxyribose + phosphate group + cytosine
deoxyribose + phosphate group + polymerase
adenine + phosphate group + thymine
cytosine + phosphate group + guanine
13
How much Thymine should you expect to find in the sample?
22%
28%
44%
24%
14
DNA replication is carried out by a series of _________________________.
regulation penalities
Biology rules
holiday wishes
enzymes
15
The structure labeled X in Figure 5 is a(an) _________________________.
pyramid
chromosome
plant cell
nucleotide

2016 Biology Midterm 5 Flashcards | StudBud