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Worksheets

DNA Lesson

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

What does DNA do?

a)

  It carries genetic codes from parents to offspring.

b)

  It carries oxygen from the lungs to the body.

c)

  It tells you who you are.

d)

  It defines the organism.

2.

Nitrogenous bases are joined by which type of bond?

a)

polar bonds

b)

ionic bonds

c)

covalent bonds

d)

hydrogen bonds

3.

A process in which DNA has the unique ability to make an exact copy of itself.

a)

Replication

b)

Translation

c)

Transcription

4.

WHICH TWO STRUCTURES MAKE UP THE BACKBONE OF DNA?

a)

THYMINE AND ADENINE

b)

CYTOSINE AND GUANINE

c)

NUCLEOTIDES AND SUGAR

d)

DEOXYRIBOSE AND PHOSPHATE

5.

A mistake in DNA replication is known as a

a)

Mutation

b)

Free Nucleotide

c)

Chromatid

d)

Antiparallel DNA Strand

e)

Gene Revocation

6.

DNA stands for

a)

Deoxyribonucleic Acid

b)

Denitrogenous Acid

c)

Deribonucleic Acid

d)

Duteriousnucleic Acid

e)

Dirigiblenucleic Acid

7.

What sugar is found in DNA

a)

glucose

b)

lactose

c)

deoxyribose

d)

fructose

8.

These scientists came up with the structure of DNA and built a model. They were credited for the discovery of DNA, winning the Nobel Prize.

a)

Rosalind Franklin

b)

Watson & Crick

c)

Griffith

d)

Hershey and Chase

9.

The picture shows a

a)

Nucleic Acid

b)

Strand of DNA

c)

Nucleotide

d)

Amino Acid

10.

What type of biomolecule are DNA and RNA?

a)

Carbohydrate

b)

Lipid

c)

Protein

d)

Nucleic Acid

11.

What part of the nucleotide is labled "C"

a)

Phosphate

b)

Nitrogenous Base

c)

Protein

d)

Sugar (Deoxyribose or Ribose)

12.

The shape of the DNA molecule is a double __________________?

a)

S

b)

helix

c)

rope

d)

curve

13.

What is the primary function of DNA in living organisms?

a)

To store genetic information

b)

To provide energy

c)

To transport nutrients

d)

To protect cells from damage

14.

Which of the following processes involves the synthesis of a complementary RNA strand from a DNA template?

a)

Replication

b)

Transcription

c)

Translation

d)

Mutation

15.

In a DNA molecule, which base pairs with adenine?

a)

Cytosine

b)

Guanine

c)

Thymine

d)

Uracil