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Practice DNA & Protein Synthesis Quiz

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

A DNA sequence of CAG would be transcribed to mRNA as

a)

GTC

b)

CUG

c)

CTG

d)

GUC

2.

mRNA is made in the

a)

ribosome

b)

mitochondria

c)

cytoplasm

d)

nucleus

3.

The sides of the DNA molecule are composed of

a)

phosphates ONLY.

b)

adenine and guanine.

c)

deoxyribose sugar.

d)

both phosphates and deoxyribose

sugar.

4.

If the sequence of bases on one side of a DNA molecule is ATCG, the correct sequence of bases

on the other side is

a)

ATGC

b)

TAGC

c)

CGTA

d)

ACGT

5.

The “steps” of the DNA molecules are composed of

a)

bases ONLY.

b)

both phosphates and bases.

c)

phosphates ONLY.

d)

both phosphates and deoxyribose

sugar.

6.

How many bases must a DNA sequence contain to code for a protein composed of 100 amino

acids?

a)

33

b)

100

c)

200

d)

300

7.

The process by which the hereditary information from DNA is encoded into mRNA is called

a)

replication.

b)

transcription.

c)

synthesis.

d)

translation.

8.

On a molecule of DNA, nitrogen bases are linked together by

a)
Hydrogen bonds
b)
Van der Waals forces
c)
Covalent bonds
d)
Ionic bonds
9.

Each of the tRNA molecules attaches and brings this specific substance to the ribosome

a)

Amino Acid

b)

Nucleotide

c)

Protein

d)

Nitrogen Base

10.

The amount of adenine equals the amount of thymine in

a)
DNA
b)
Protein
c)
RNA
d)
Lipid
11.

Which scientists figured out the three-dimensional structure of DNA by using a model of metal and

wood?

a)
Marie Curie and Galileo Galilei
b)
Albert Einstein and Isaac Newton
c)
James Watson and Francis Crick
d)
Charles Darwin and Gregor Mendel
12.

Protein synthesis occurs at the

a)
endoplasmic reticulum
b)
ribosomes
c)
nucleus
d)
mitochondria
13.

What happens during the process of translation?

a)
The process of converting DNA into RNA
b)
The process of converting amino acids into genetic information
c)
The process of producing energy from proteins
d)
Genetic information in mRNA is decoded to produce a specific sequence of amino acids, forming a protein.
14.

A series of 3 nucleotide bases in mRNA that code for an amino acid is called a _________.

a)
gene sequence
b)
amino acid triplet
c)
codon
d)
nucleotide trio
15.

The process in which DNA duplicates itself is called __________________.

a)
DNA replication
b)
Cell division
c)
Protein synthesis
d)
RNA transcription