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Protein synthesis

Total questions: 27

Worksheet time: 23mins

Name
Class
Date
1.

The monomers units of DNA and RNA are

a)

amino acids

b)

monosaccharides

c)

nucleotides

d)

fatty acids

2.

The RNA codon AUG means

a)

add amino acid methionine

b)

start the protein here

c)

add the amino acid tyrosine

d)

end the polypeptide chain here

3.

The transfer of genetic info from DNA to RNA is called

a)

translation

b)

transcription

c)

initiation

d)

elongation

4.

Which of the following sequences best describes the flow of information that takes place when a gene directs the synthesis of a cellular component?

a)

RNA-DNA-RNA-PROTEIN

b)

DNA-RNA-PROTEIN

c)

PROTEIN-RNA-DNA

d)

DNA-AMINO ACID-RNA-PROTEIN

5.

Translation consists of which of the following?

a)

conversion of genetic info from the language of nucleic acids to the language of proteins

b)

conversion of genetic info from DNA to RNA

c)

addition of nucleotides to a DNA template

d)

DNA replication

6.

Which of the following is required for translation to occur?

a)

energy

b)

ribosomes

c)

tRNA

d)

all of these

7.

The info carried by DNA is in

a)

an amino acid sequence

b)

the sugars and phosphates that form the backbone

c)

the order of bases in the molecule

d)

the total number of nucleotides

8.

A gene is

a)

the same as a chromosome

b)

the info for making a polypeptide

c)

made of RNA

d)

made of protein

9.

During the process of translation, ____ matches a nucleic acid codon with the proper amino acid.

a)

a ribosome

b)

ATP

c)

polymerase

d)

mRNA

10.

When RNA is being made, the RNA base ____ always pairs with the base ___ in DNA.

a)

U-T

b)

T-G

c)

U-A

d)

A-U

11.
A sugar, a phosphate group, and a nitrogen base form the building blocks of which organic compound?
a)
carbohydrates
b)
nucleic acids
c)
lipids
d)
proteins
12.
Which of the following is the template for the production of RNA within a cell?
a)
DNA
b)
protein
c)
ATO
d)
carbohydrate
13.
which process is shown?
a)
diffusion
b)
repiration
c)
recombination
d)
translation
14.
The genetic material of an organism is composed of
a)
lipids
b)
proteins
c)
deoxyribonucleic acids
d)
complex carbohydrates
15.
Which of the following best describes how DNA and RNA are similar?
a)
they both contain A and T
b)
They both have a double helix
c)
They are both composed of 5 different nucleotides
d)
they both have C and G
16.
The DNA sequence ATCAGCGCTGGC is part of a gene. how many amino acids are coded for by this message?
a)
4
b)
8
c)
12
d)
20
17.
A scientist puts nucleotide chains of UUUUUU in a test tube under conditions allowing protein synthesis. Soon they are only amino acids chains of phenylalinine. What does the experiment indicate?
a)
phenylalanine is composed of uracil
b)
UUU codes for phenylalanine
c)
protein synthesis malfunctions in test tubes
d)
proteins contain one kind of amino acids
18.
One human disease is caused by a change in one codon in a gene from GAA to GUA. The disease is a result of 
a)
a mutation
b)
crossing-over
c)
a meiosis error
d)
polyploidy
19.
DNA sequence is ACAGTGC. How would this be coded on mRNA?
a)
TGTCACG
b)
UGUCACG
c)
GUGACAU
d)
CACUGUA
20.
What is the relationship between a protein, the cell, and DNA?
a)
DNA is produced by protein which is produced in the cell
b)
Protein is composed of DNA which is produced in the cell
c)
DNA controls the production of protein in the cell
d)
A cell is composed of DNA and protein
21.
Which process?
a)
mutation
b)
transcription
c)
respiration
d)
translation
22.
Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand: 
GTAGTCA
a)
UATUAGA
b)
ACGACTG
c)
CAUCAGU
d)
CATCAGT
23.
What is the term for a three-nucleotide sequence that codes for an amino acid?
a)
base
b)
codon
c)
amine
d)
serine
24.
Which of the following is the site of transcription?
a)
vacuole
b)
lysosome
c)
nucleus
d)
ribosome
25.
Which phrase best describes translation?
a)
converts mRNA into a polypeptide
b)
catalyzes bonds between amino acids
c)
produces RNA from DNA molecules
d)
recycles tRNA molecules for reuse
26.
Which of the following is the site of translation?
a)
vacuole
b)
lysosome
c)
nucleus
d)
ribosome
27.
What would happen if we did not have start codons?
a)
Polypeptide chains would continue to grow
b)
Amino acids would bind to tRNA
c)
Protein synthesis wouldn't occur
d)
mRNA would form a double strand