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Unit 7 Codons and Translation

Total questions: 26

Worksheet time: 17mins

Name
Class
Date
1.

What amino acids are coded for by the mRNA CGA GGU

a)

Methionine, STOP

b)

Arginine, Glycine

c)

Serine, Glycine

d)

Glycine Arginine

2.

DNA into mRNA =?

a)

Replication

b)

Transcription

c)

Translation

3.

mRNA into proteins =?

a)

Replication

b)

Transcription

c)

Translation

4.

DNA into DNA =?

a)

Transcription

b)

Translation

c)

Replication

5.

If you have GAA tRNA antiocodon, what would the DNA that codes for that be? (Hint, go from tRNA to mRNA to DNA)

a)

GTA

b)

GAA

c)

WOW

d)

CAA

6.

If you have ATT DNA, what amino acid does that code for?

a)

STOP

b)

Tyrosine

c)

Leucine

d)

Serine

7.

What amino acids does mRNA of U A C code for?

a)

STOP

b)

Cysteine

c)

Tyrosine

d)

Serine

8.

Anticodons, which are found on (a)   (type of RNA), are used to match the codon of mRNA to ensure the proper amino acid is transferred over.

9.

A codon is found on ____, and is a 3 nitrogen base letter combination that codes for a specific amino acid.

a)

mRNA

b)

rRNA

c)

tRNA

d)

DNA

10.

The image shows translation. What is tRNA transferring to the ribosome?

a)

amino acids

b)

mRNA

c)

codons

d)

energy

11.

A (a)   codon means it is the end of translation, so the mRNA will leave because the polypeptide (protein) is done being made.

12.

A (a)   codon tells the ribosome to begin protein synthesis.

13.

If you are given tRNA antiocodon of ( G A U ), what would the DNA sequence of that be? (HINT: Work backwords, look at the image for an example of what to do).

(a)  

14.

Use the codon chart provided. Which DNA sequence below could code for Alanine?

a)

C C C

b)

C G A

c)

T T A

d)

T A G

15.

What is one mRNA sequence that could code for the amino acid Tyrosine?

(a)  

16.

What process is shown here:

ATG CAG -> UAC GUC

(a)  

17.

What organelle is used to produce structural/functional proteins?

a)

Golgi appartus

b)

Smooth Endoplasmic Reticulum

c)

Ribosomes

d)

Nucleus

18.

What is a segment of DNA that is converted into mRNA, then used for translation to make a specific protein?

(a)  

19.
What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA
a)
Met-Pro-Ala-Val
b)
Met-Pro-Val
c)
Tyr-Gly-His
d)
Tyr-Gly-Arg-His
20.
What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA
a)
Met-Pro-Ala-Val
b)
Met-Pro-Val
c)
Tyr-Gly-His
d)
Tyr-Gly-Arg-His
21.

What are the codes for the following amino acids (choose multiple correct mRNA codes to the following AA): Tyrosine

a)

UUA

b)

UAU

c)

UAC

d)

UAA

e)

UCA

22.

Choose the answer with a correct possible mRNA code for the following sequence of amino acids:

Leucine - Alanine - Serine

a)

CUU - GCC - AGG

b)

CUU - GCA - AGU

c)

UUA - GAC - UCU

d)

UUU - GCC - UCG

23.

What is one mRNA sequence that could code for the amino acid Tyrosine?

(a)  

24.

Methionine, AUG, is a ________ codon, beginning translation.

a)

Start

b)

Stop

c)

Begin

d)

Green Flag

25.

CHOOSE ALL OF THE FOLLOWING that are STOP CODONS, which end the process of translation and the protein is then folded/used:

a)

UAA

b)

UAG

c)

UGA

d)

UGG

e)

UAC

26.

Which DNA sequence below would code for Isoleucine?

a)

TAC

b)

TAA

c)

GAA

d)

CAC