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Protein Synthesis

Total questions: 19

Worksheet time: 11mins

Name
Class
Date
1.

DNA stays in __________.

a)

the cytoplasm

b)

the nucleus

c)

the liver

d)

the ribosomes

2.

Proteins are made in two steps, ____________ and __________.

a)

transcription

b)

replication

c)

translation

d)

mitosis

3.

Transcription is when ___________ reads DNA and creates mRNA.

a)

DNA polymerase

b)

helicase

c)

RNA polymerase

d)

ribosomes

4.

Translation is when mRNA combines with a ribosome and _______ to create a chain of amino acids.

a)

protein

b)

amino acid

c)

DNA

d)

tRNA

5.

What comes first, translation or transcription?

a)

translation

b)

transcription

6.

Transcribe this DNA strand into matching RNA:

ATT TAA CGC

a)

UAA AUU GCG

b)

TAA ATT GCG

c)

CGG GCC ATA

d)

TUU UTT GCG

7.

True or False: DNA and RNA are both nucleic acids.

a)

True

b)

False

8.

_____ leaves the nucleus to carry out its message.

a)

DNA

b)

ribosomes

c)

mRNA

9.

______ has nucleotides.

a)

DNA

b)

RNA

c)

both

10.

_______ connects with ribosomes.

a)

RNA

b)

DNA

c)

both

11.

_______ has deoxyribose.

a)

RNA

b)

DNA

c)

both

12.

RNA __________

a)

is single stranded

b)

uses ribose

c)

has nucleotides

d)

contains uracil

13.

___________ removes non-coding regions of DNA.

a)

DNA polymerase

b)

ribosomes

c)

cytoplasm

d)

mRNA processing

14.

True or False: there are more coding regions than non-coding regions.

a)

True

b)

False

15.

Non-coding regions are also called ________.

a)

introns

b)

exons

c)

genes

d)

traits

16.

Before mRNA can leave the nucleus, it needs a ______ and a ______.

a)

tail of AAAAAA

b)

cap

c)

coat

d)

shoes

17.

Once the mRNA leaves the nucleus and enters the cytoplasm, _________ begins.

a)

replication

b)

transcription

c)

translation

d)

mitosis

18.

Ribosomes read mRNA 3 letters at a time. We call these 3 letters _______.

a)

tRNA

b)

codons

c)

amino acids

d)

anticodons

19.

tRNA carries a specific ________.

a)

gene

b)

amino acid

c)

protein

d)

mRNA