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RNA TO PROTEINS

Total questions: 15

Worksheet time: 4hrs 45mins

Name
Class
Date
1.

DNA contains the sugar:

a)

deoxyribose

b)

ribose

2.

DNA has the bases :

a)

A, C, G, and T

b)

A, C, G, and U

c)

A, C, G, and B

3.

The enzyme that helps a cell to make a strand of RNA is called

a)

RNA polymerase

b)

DNA polymerase

c)

Guanine

4.

A large transcription complex, including RNA polymerase and other proteins, assembles at the start of a gene and begins to unwind the

a)

DNA

b)

RNA

c)

Nucleus

5.

brings amino acids from the cytoplasm to a ribosome to help make the growing protein.

a)

mRNA

b)

rRNA

c)

tRNA

6.

forms part of ribosomes

a)

mRNA

b)

rRNA

c)

tRNA

7.

is an intermediate message that is translated to form a protein.

a)

mRNA

b)

rRNA

c)

tRNA

8.

converts an mRNA message into a polypeptide, or protein.

a)

Translation

b)

Replication

c)

Transport

9.

A codon is a sequence of ________ nucleotides that code for an amino acid

a)

two

b)

one

c)

three

10.

Use the codon chart*

Codon:

AGA

a)

arginine (Arg)

b)

tryptophan (Trp)

c)

valine (Val)

11.

A ______________ indicates where translation is to stop.

a)

stop codon

b)

start codon

12.

How many amino acids are used to make up the all of the proteins in the human body?

a)

16

b)

20

c)

23

d)

46

13.

A tRNA that carries the amino acid methionine pairs with which type of codon?

a)

tRNA codon

b)

start codon

c)

stop codon

14.

Which phrase best describes translation?

a)

converts mRNA into a polypeptide

b)

produces RNA from DNA molecules

c)

recycles tRNA molecules for reuse

15.

Which of the following is the site of translation?

a)

ribosome

b)

lysosome

c)

vacuole