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AP Nucleic Acids

Total questions: 8

Worksheet time: 5mins

Name
Class
Date
1.

The repeating units in both DNA and RNA are called

a)

hydrogen bonds

b)

nucleic acids

c)

nucleotides

d)

amino acids

2.

The sugar that is in the backbone of DNA is called

a)

fructose

b)

ribose

c)

glucose

d)

deoxyribose

3.

Nucleotide bases pair in DNA through

a)

hydrogen bonds between complementary bases

b)

polar covalent bonds between complementary bases

c)

sugar bonds between complementary bases

d)

none of the choices

4.

What nucleotide base does RNA contain that DNA does not?

a)

adenine (A)

b)

cytosine (C)

c)

uracil (U)

d)

thymine (T)

5.

If you have 40 adenine in a DNA molecule, how many thymine can you expect?

a)

10

b)

20

c)

40

d)

80

6.

A piece of DNA was analysed and 15% of its nucleotides were adenine. What percentage would be uracil?

a)

0%

b)

15%

c)

35%

d)

70%

7.

What are the components of a nucleotide?

a)

pentose sugar and phosphate group

b)

nitrogenous base, phospahte group, pentose sugar

c)

nitrogenous base and DNA

d)

nitrogenous base and pentose sugar

8.

Which ones are purines?

a)

Adenine and Guanine

b)

Adenine and Thymine

c)

Cytosine and Guanine

d)

Cytosine and Thymine