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DNA/RNA test practice 2024

Total questions: 44

Worksheet time: 1hrs 9mins

Name
Class
Date
1.
What is the shape of DNA?
a)
Double helix
b)
Triple helix
c)
Flat, bilayer
d)
Three-pronged rigid ladder
2.
DNA replication turns one strand of DNA into two new strands of DNA. What percent of each new strand is the old strand?
a)
Half of each new DNA is the old DNA
b)
The old strand of DNA was digested, so none
c)
The new DNA is entirely made up of the old DNA
d)
About every sixth base comes from the old DNA
3.
What is the purpose of DNA replication?
a)
Cut the DNA 
b)
Make more cells
c)
Apoptosis
d)
Duplicate the DNA
4.
Which sequence of DNA bases would pair with this partial strand
CAT TCA CTG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
5.
RNA contains the sugar
a)
ribose
b)
deoxyribose
c)
glucose
d)
lactose
6.

What is the central dogma of molecular biology?

a)

RNA-> protein-> DNA

b)

RNA-> DNA-> protein

c)

DNA-> protein-> RNA

d)

DNA-> RNA-> protein

7.

In RNA the base T is replaced with

a)

U

b)

G

c)

C

d)

A

8.

What are the proper complementary base-pairs DNA?

a)

A--T and G--C

b)

A--G and C--T

c)

G--T and A--C

d)

A--C and T--G

9.

What does mRNA stand for?

a)

Transfer RNA

b)

Ribosomal RNA

c)

Messenger RNA

d)

Deoxyribose RNA

10.

What does tRNA stand for?

a)

Transfer RNA

b)

Ribosomal RNA

c)

Messenger RNA

d)

Deoxyribose RNA

11.

What does rRNA stand for?

a)

Transfer RNA

b)

Ribosomal RNA

c)

Messenger RNA

d)

Deoxyribose RNA

12.

Why is DNA important?

a)

It serves as the blueprint for the traits of all living things

b)

It is a major energy source in the human body

c)

It helps to dissolve complex materials in living things

d)

It can be extracted and used to increase oxygen levels

13.

Identify which of these statements is correct, the percent (%) of guanine is equal to the percent of

a)

adenine

b)

thymine

c)

cytosine

d)

guanine

14.

In the DNA of a panda, there is 30% adenine. Determine the percent of guanine.

a)

15%

b)

40%

c)

10%

d)

20%

15.

I include bases guanine, cytosine, and adenine.

a)

DNA

b)

RNA

c)

both

16.

I generally remain in the nucleus [in eukaryotic cells].

a)

DNA

b)

RNA

c)

both

17.

I am made up of nucleotides.

a)

DNA

b)

RNA

c)

both

18.

Where does translation take place?

a)

Nucleus

b)

Ribosomes

c)

Mitochondria

d)

Vacuole

19.

Which type(s) of RNA are involved in translation?

a)

Transfer RNA (tRNA)

b)

Ribosomal RNA (rRNA)

c)

Messenger RNA (mRNA)

d)

all RNA listed

20.
What does tRNA do?
a)
carry info from genes to ribosomes
b)
carry amino acids to ribosomes
c)
help with RNA splicing
d)
make up ribosomes
21.

What does rRNA do?

a)

carry info from genes to ribosomes

b)

carry amino acids to ribosomes

c)

help with RNA splicing

d)

make up ribosomes

22.

What are the 4 nitrogen bases? (DNA)

a)

adenine, thymine, cytoplasm, and guanine

b)

adenine, thymine cytosine, and guanine

c)

adenine, thymine, cytosine, and gylcerol

d)

adenine, thymine, cytosine, and glucose

23.
The two strands of nitrogenous bases in DNA are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
24.
How does RNA differ from DNA?
a)
RNA contains uracil and deoxyribose
b)
RNA contains ribose and thymine
c)
RNA contains uracil and ribose
d)
RNA contains adenine and ribose
25.
What is the template for mRNA?
a)
DNA
b)
tRNA
c)
rRNA
d)
proteins
26.
What is the shape of DNA?
a)
Double helix
b)
Triple helix
c)
Flat, bilayer
d)
Three-pronged rigid ladder
27.

Science is a continually ongoing process.

a)

True!!!!!!!!!!!!!!

b)

False

28.

__________ stores genetic information and makes proteins

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

29.
What is the purpose of DNA replication?
a)
Cut the DNA 
b)
Make more cells
c)
Apoptosis
d)
Duplicate the DNA
30.
What is the product of translation?
a)
DNA
b)
mRNA
c)
tRNA
d)
proteins
31.

What is the principal enzyme involved in DNA replication

a)

glucose

b)

fructose

c)

DNA Polymerase

d)

Lactase

32.
Changes is DNA sequences that affect genetic information are known as
a)
replications
b)
mutations
c)
transformations
d)
translations
33.

How does rRNA read the mRNA strand?

a)

In single nucleotides

b)

In codons

c)

All at once

34.

Select all of the RNA types from the options below

a)

mRNA

b)

rRNA

c)

pRNA

d)

tRNA

e)

cRNA

35.

What is a codon?

a)

A set of 3 nucleotides on mRNA

b)

A set of 3 nucleotides on DNA

c)

A whole strand of mRNA

d)

An amino acid

36.
The following picture must be
a)
DNA because it's double stranded
b)
RNA because it's single stranded
c)
DNA because it's single stranded
d)
RNA because it's double stranded
37.

What is the correct amino acid for mRNA CAC

a)

Stop

b)

Try.

c)

Arg.

d)

Hist.

38.

What is the correct amino acid for mRNA UGU

a)

Stop

b)

Cys.

c)

Arg.

d)

Hist.

39.

Protein Synthesis is

a)

the process in which cells follow a series of steps to create proteins

b)

DNA replication -> Transcription -> Translation

c)

DNA is copied from mRNA, which is used as a template for the instructions to make protein

d)

All of the above!

40.

Which suspect is linked to the crime scene by this DNA analysis?

a)

Suspect A

b)

Suspect C

c)

Suspect D

d)

Suspect B

41.

What is non-coding DNA also known as?

a)

Proteins

b)

Junk DNA

c)

Coding DNA

d)

RNA

42.
In a strand of DNA, if it contains 20% of Thymine, then how much Guanine would be present?
a)
30%
b)
20%
c)
80%
d)
10%
43.
the process of making a copy of DNA
a)
transcription
b)
double helix
c)
DNA replication
d)
replication fork
44.

Protein Synthesis is

a)

the process in which cells follow a series of steps to create proteins

b)

DNA replication -> Transcription -> Translation

c)

DNA is copied from mRNA, which is used as a template for the instructions to make protein

d)

All of the above!

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