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B.7.A DNA Structure Study Questions

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What are the building blocks of DNA?

a)

Amino acids

b)

Fatty acids

c)

Nucleotides

d)

Sugars

2.

What are the three parts of a DNA nucleotide? (Select all that apply)

a)

Phosphate group

b)

Nitrogen base

c)

Sugar

d)

Amino acid

3.

Which nitrogen bases pair together in DNA? (Select all that apply)

a)

Adenine – Thymine

b)

Guanine – Cytosine

c)

Adenine – Guanine

d)

Thymine – Cytosine

4.

What shape is the DNA molecule?

a)

Single helix

b)

Circle

c)

Double helix

d)

Linear chain

5.

Where is DNA located in a eukaryotic cell?

a)

Cytoplasm

b)

Ribosome

c)

Nucleus

d)

Mitochondria

6.

What carries the genetic instructions that determine an organism’s traits?

a)

Lipids

b)

Proteins

c)

DNA

d)

Enzymes

7.

What part of the nucleotide carries the genetic code?

a)

Phosphate group

b)

Sugar

c)

Nitrogen base

d)

Hydrogen bond

8.

How does the order of DNA bases affect an organism?

a)

It changes the size of the cell

b)

It determines the traits the organism will have

c)

It controls blood flow

d)

It affects cell division only

9.

Which of the following best describes the function of DNA?

a)

Transports proteins

b)

Stores genetic information

c)

Provides energy

d)

Regulates temperature

10.

Scientific evidence supports that DNA is the molecule responsible for:

a)

Storing fat

b)

Providing structure to cells

c)

Heredity and genetic traits

d)

Breaking down food