wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

DNA, RNA, and Proteins

Total questions: 35

Worksheet time: 36mins

Name
Class
Date
1.

The enzyme that works to unzip DNA's double helix to begin replication is

a)

DNA polymerase.

b)

RNA polymerase.

c)

DNA ligase.

d)

DNA helicase.

2.

DNA replication results in two DNA molecules,

a)

each with one new strand and one original strand.

b)

one with two new strands and one with two original strands.

c)

each with two new strands.

d)

each with two original strands.

3.

Since DNA replication results in 2 new strands of DNA, one side of original DNA, and one new strand, it is referred to as

a)

semi-permeable.

b)

semi-conservative.

c)

semi-replicative.

d)

semi-transcriptive.

4.

According to Chargaff's rules, which nucleotide is always paired with Adenine in a DNA molecule?

a)

Thymine

b)

Guanine

c)

Cytosine

d)

Uracil

5.

According to Chargaff's rules, which nucleotide always pairs with Cytosine in a RNA molecule?

a)

Uracil

b)

Thymine

c)

Guanine

d)

Adenine

6.

According to Chargaff's rules, which nucleotide always pairs with Adenine in an RNA molecule?

a)

Thymine

b)

Uracil

c)

Cytosine

d)

Guanine

7.

Nitrogen bases with only 1-ring are called

a)

purines

b)

pyrimidines

c)

nucleotides

d)

nucleosomes

8.

Nitrogen bases with 2 rings are called

a)

purines.

b)

pyrimidines.

c)

nucleotides.

d)

nucleosomes.

9.

Which of the following are pyrimidines?

a)

cytosine

b)

guanine

c)

adenine

d)

thymine

10.
A portion of mRNA is coded CUG. The corresponding DNA is coded
a)
GAC
b)
GTC
c)
CTG
d)
CAG
11.
A portion of DNA reads GAG. The corresponding mRNA would be
a)
GUG
b)
GTG
c)
CTC
d)
CUC
12.
The process of creating RNA using DNA as the template is
a)
translation
b)
transcription
c)
translocation
d)
Transylvania
13.
In eukaryotes, molecule 1 is found in
a)
ribosomes
b)
chloroplasts
c)
cytoplasm
d)
the nucleus
14.
Molecule 3 is synthesized in 
a)
ribosomes
b)
chloroplasts
c)
the cell membrane
d)
the nucleus
15.
Nitrogenous bases are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
16.
Which of the following units are repeatedly joined together to form a strand of DNA?
a)
amino acids
b)
nucleotides
c)
fatty acids
d)
polysaccharides
17.
Which of the following statements is true?
a)
DNA is single-stranded
b)
RNA is single-stranded
c)
DNA contains uracil
d)
RNA contains deoxyribose
18.
Which type of RNA takes the instructions from the nucleus to the cytoplasm?
a)
mRNA
b)
tRNA
c)
rRNA
d)
RNA polymerase
19.
What is the product of translation?
a)
DNA
b)
mRNA
c)
tRNA
d)
proteins
20.
What is the product of transcription?
a)
DNA
b)
mRNA
c)
tRNA
d)
proteins
21.
The process of making RNA (i.e. mRNA) from DNA is called
a)
Replication
b)
Transcription
c)
Translation
d)
Protein synthesis
22.

Where does transcription take place?

a)

mitochondria

b)

ribosome

c)

nucleus

d)

cytoplasm

23.
The DNA sequence TACGAA would be transcribed to
a)
AUGCUU
b)
ATGCTT
c)
GCATCC
d)
GCAUCC
24.
A segment of DNA that codes for a protein is called a...
a)
Enzyme
b)
Mutation
c)
Gene
d)
Complimentary
25.

Protein synthesis (Translation) is important because it __________.

a)

Converts mRNA into a protein

b)

Copies the genetic information in DNA

c)

Produces RNA from DNA molecules

d)

Recycles tRNA molecules for reuse

26.

Where does protein synthesis (translation) take place?

a)

in the nucleus

b)

in the cytoplasm on ribosomes

c)

in the chloroplasts

d)

in the mitochondria

27.
Transfer RNA (tRNA) is important because it __________.
a)
Carries amino acids to the ribosome
b)
Carries ribosomes to the ER
c)
Carries glucose to mitochondria
d)
Carries mRNA out of the nucleus
28.
Which of the following is a correct difference between RNA and DNA?
a)
RNA is single stranded and DNA is double stranded
b)
RNA is double stranded and DNA is single stranded
c)
DNA uses Uracil and RNA uses Thymine
d)
RNA has deoxyribose and DNA has ribose
29.

Mutations are

a)

changes in DNA

b)

changes in RNA

c)

changes in amino acids

d)

changes in tRNA

30.

Which of the following is true about mutations?

a)

Mutations are always harmful.

b)

Mutations are always helpful.

c)

Mutations can be helpful, harmful, or neutral.

d)

Mutations always have no effect on the protein.

31.

Which of these chromosomal mutation diagrams shows a deletion mutation?

a)

A

b)

B

c)

C

d)

D

32.

The anticodon is a triplet code found on

a)

DNA

b)

rRNA

c)

tRNA

d)

mRNA

33.

Hox genes are a series of genes that control

a)

the lac operon.

b)

the burning of glucose in mitochondria.

c)

the replication of DNA.

d)

the sequential development of an animal's basic body plan.

34.

When the lac repressor protein binds to the ____, the lac operon is turned off.

a)

anticodon

b)

promoter

c)

operator

d)

intron

35.

Many DNA molecules contain sequences called _____ that are not involved in coding for proteins and are edited out of the complementary RNA molecule copy before it is used.

a)

introns

b)

exons

c)

anticodons

d)

nucleosomes

Similar Resources on Wayground

Cells

30 questions

Cells

quiz

Worksheet

•

9th - 10th Grade

Unit 1 Test Review

40 questions

Unit 1 Test Review

quiz

Worksheet

•

10th - 12th Grade

the skin

34 questions

the skin

quiz

Worksheet

•

9th - 10th Grade

First 3 Weeks Test Review

32 questions

First 3 Weeks Test Review

quiz

Worksheet

•

9th - 12th Grade

Materials & Processes - TEST #3 Review

30 questions

Materials & Processes - TEST #3 Review

quiz

Worksheet

•

10th - 12th Grade

Book 2 Unit 2: Lesson 2 Quiz

34 questions

Book 2 Unit 2: Lesson 2 Quiz

quiz

Worksheet

•

8th - 12th Grade

Characteristics of Life

30 questions

Characteristics of Life

quiz

Worksheet

•

10th Grade

Muscular and Skeletal Exam Prep

35 questions

Muscular and Skeletal Exam Prep

quiz

Worksheet

•

10th - 12th Grade