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Structure of DNA

Total questions: 7

Worksheet time: 2mins

Name
Class
Date
1.

How many nucleic acids are there?

a)

Many

b)

Only DNA

c)

Only RNA

d)

Both DNA and RNA

2.

What is the building block of DNA?

a)

Protein

b)

Nucleotides

c)

Nucleic acids

d)

Phpsphate

3.

What are the three parts of a nucleotide?

a)

Sugar, protein, phosphate

b)

Sugar, phosphate, nucleic acid

c)

Sugar, phosphate, nitrogen base

d)

Sugar, protein, nitrogen base

4.

What are the four types of nucleotides in DNA?

a)

Adenine, Guanine, Cytosine, Thymine

b)

Adenine, Guanine, Uracil, Thymine

c)

Adenine, Guanine, Thymine, Branine

d)

Adenine, Cytosine, Uracil, Guanine

5.

How are the nucleotides joined together in DNA?

a)

Through bonds

b)

Through covalent bonds

c)

Through hydrogen bonds

d)

Through ionic bonds

6.

Chargaff's rule states that:

a)

A=G and T=C

b)

A=C and G=T

c)

A=T and C=G

d)

A=U and T=G

7.

The covalent bonds connecting nucleotides join through:

a)

Sugar and phosphate

b)

Sugar and nitrogen base

c)

Phosphate and nitrogen base

d)

Sugar and sugar