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DNA Quiz for 10th Grade Students

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is the overall shape of a DNA molecule called?

a)

Single helix

b)

Triple helix

c)

Double helix

d)

Spiral coil

2.

What are the individual units that make up DNA called?

a)

Amino acids

b)

Nucleotides

c)

Proteins

d)

Chromosomes

3.

Which of the following is NOT one of the three parts of a nucleotide?

a)

Phosphate

b)

Sugar

c)

Base

d)

Enzyme

4.

How many different types of bases are there in DNA?

a)

2

b)

3

c)

4

d)

5

5.

What concept ensures that A always pairs with T and C always pairs with G in DNA?

a)

Base sequencing

b)

Complementary base pairing

c)

Nucleotide bonding

d)

Genetic coding

6.

What structure forms the outer part of the DNA molecule, protecting the bases?

a)

Protein shell

b)

Lipid membrane

c)

Sugar phosphate backbone

d)

Base pair ladder

7.

In the genetic code, how many bases form a "triplet" that codes for an amino acid?

a)

2

b)

3

c)

4

d)

5

8.

What is the term for a specific sequence of bases that codes for a particular protein?

a)

Chromosome

b)

Genome

c)

Gene

d)

Allele

9.

Which of the following is NOT mentioned as a main use of proteins in the body?

a)

Enzymes

b)

Hormones

c)

Structural proteins

d)

Antibodies

10.

What is the final step in protein formation after the amino acids are joined together?

a)

DNA replication

b)

Base pairing

c)

Folding

d)

Translation