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DNA: Its Role and Inheritance and Protein Synthesis

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

A double helix contains the genetic information of almost all living organisms.

a)

Deoxyribonucleic acid

b)

Ribonucleic acid

c)

Genes

d)

Chromosomes

2.

The following are enzymes needed for the protein synthesis process. EXCEPT

a)

Helicase

b)

Primase

c)

Amylase

d)

Ligase

3.

The following are purine. EXCEPT

a)

Adenine

b)

Guanine

c)

Thymine

4.

What do you call the bond that build a strong connection to the DNA backbone?

a)

Phosphodiester

b)

Covalent bond

c)

Hydrogen bond

d)

Ionic bond

5.

DNA: Adenine--___________

a)

Cytosine

b)

Guanine

c)

Thymine

d)

Uracil

6.

ATTGGAACT

a)

TATCCTTGA

b)

TAACGTTCA

c)

TAACCATGA

d)

TAACCTTGA

7.

What composition of DNA that composes also of Adenine, Guanine, Cytosine and Thymine.

a)

Nitrogenous base

b)

Five carbon sugar

c)

Phosphate group

8.

Enzyme that responsible for unzipping of DNA.

a)

Helicase

b)

Primase

c)

Polymerase

d)

Ligase

9.

Carries the message copied from the DNA to produce proteins.

a)

mRNA

b)

tRNA

c)

transcript RNA

10.

Refers to the process of copying one DNA to produce two identical DNA molecules.

a)

Transcription

b)

Translation

c)

Replication

11.

The process by which the genetic information in the DNA strand is transcribed to the messenger RNA (mRNA)

a)

Replication

b)

Translation

c)

Transcription

12.

Enzyme that decode the unwind DNA to create two DNA

a)

Helicase

b)

Ligase

c)

DNA Polymerase

d)

Primase

13.

What do you call the bond of the nitrogenous base?

a)

Covalent bond

b)

Ionic bond

c)

Hydrogen bond

d)

Phosphodiester

14.

Guanine:______

a)

Guanine

b)

Thymine

c)

Cytosine

d)

Adenine

15.

Pyrimidine

a)

Thymine

b)

Adenine

c)

Guanine

16.

What is the product of Protein synthesis?

a)

amino acid

b)

polypeptide chain

c)

enzymes

d)

ATP

17.

The basic physical and functional unit of heredity.

a)

Chromosomes

b)

DNA

c)

RNA

d)

Genes

18.

Te following are DNA backbone EXCEPT.

a)

Nitrogenous base

b)

Phosphate group

c)

Sugar

19.

Process wherein the protein molecules are assembled from the information encoded in mRNA.

a)

messenger RNA

b)

Replication

c)

Transcription

d)

Translation

20.

5'- 3':__________

a)

3'- 5'

b)

5'-3'

c)

3'-3'

d)

5'-5'