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Worksheets

Base Pairs

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

Adenine bonds with ______________.

a)

Guanine

b)

Thymine

c)

Cytosine

d)

Adenine

2.

Guanine bonds with ______________.

a)

Adenine

b)

Guanine

c)

Cytosine

d)

Thymine

3.

Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG

a)

ATG TGA CAG

b)

TAC ACT GTC

c)

GTA AGT GAC

d)

CAT TCA CTG

4.

What will the matching sequence be on a strand that reads AAGCTAT?

a)

AACGATA

b)

TTCGTTA

c)

CCTGATA

d)

TTCGATA

5.

Which of these would be the complementary sequence of nitrogenous bases to the following DNA strand: AGGTCA

a)

GAACTA

b)

TCCAGT

c)

CTTGCC

d)

None of these are correct

6.

Which base pairs with Adenine in DNA?

a)

Guanine

b)

Thymine

c)

Cytosine

d)

Adenine

7.

Which base pairs with Cytosine in DNA?

a)

Adenine

b)

Guanine

c)

Cytosine

d)

Thymine

8.

What is the complementary DNA strand for the sequence GATTACA?

a)

CTAATGT

b)

GATTACA

c)

CTGGTCA

d)

TCCGATA

9.

In a DNA double helix, which base pairs with Guanine?

a)

Adenine

b)

Thymine

c)

Cytosine

d)

Guanine

10.

Which of the following sequences is complementary to the DNA strand ATCGGA?

a)

TAGCCT

b)

ATCGGA

c)

GCTAGG

d)

CGATCC

11.

What is the complementary sequence for the DNA strand CGTACG?

a)

GCATGC

b)

CGTACG

c)

TACGTA

d)

GCTAGC

12.

Which base does Thymine pair with in DNA?

a)

Adenine

b)

Guanine

c)

Cytosine

d)

Thymine

13.

What is the complementary DNA sequence for the strand TGCATG?

a)

ACGTAC

b)

TGCATG

c)

GTACGT

d)

CGTACG

14.

Which of the following is a correct base pair in DNA?

a)

Adenine-Guanine

b)

Thymine-Cytosine

c)

Adenine-Thymine

d)

Guanine-Thymine

15.

What is the complementary sequence for the DNA strand AGCTAG?

a)

TCGATC

b)

AGCTAG

c)

GCTAGC

d)

CTAGCT