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DNA Unit Practice Quiz

Total questions: 29

Worksheet time: 19mins

Name
Class
Date
1.

A DNA molecule is shaped like a

a)

toilet

b)

cone

c)

ball

d)

spiraled ladder

2.

What base pairs with adenine?

a)

phosphate

b)

guanine

c)

cytosine

d)

thymine

3.

What base pairs with thymine?

a)

adenine

b)

guanine

c)

cytosine

d)

limousine

4.

What base pairs with guanine?

a)

cytosine

b)

guanine

c)

thymine

d)

sugar

5.

What base pairs with cytosine?

a)

guanine

b)

adenine

c)

thymine

d)

magazine

6.

What is DNA

a)

donuts need algea

b)

did no algebra

c)

do not answer

d)

deoxyribonucleic acid

7.

What are the 3 parts of a nucleotide?

a)

a phosphate group

b)

a base

c)

a wave caused by a large bomb

d)

a 5 carbon sugar

8.

Why is DNA important?

a)

It teleports cookies to my locker.

b)

It carries the instructions for our cells.

c)

It allows me to be invisible.

d)

It gave us a snow day in August.

9.

If a DNA sequence it GAATGCCT, what are the matching base pairs?

a)

ACGTACCTG

b)

AEIOU and sometimes Y

c)

CTTACGGA

d)

GCCTATGC

10.

If a DNA sequence is CATCAT, what are the matching base pairs?

a)

ACGTAC

b)

MEOW

c)

GTAGTA

d)

GCCTAT

11.

How does DNA replicate? Choose the 3 steps.

a)

1st, it unwinds and unzips.

b)

Finally, Elves weave new bases onto the old DNA.

c)

Then, new bases match up to the parent strands.

d)

Next, the two single stands act as a template for the new strand to be created.

12.

Why is DNA replication and example of semi-conservative replication?

a)

Each new stand of DNA has all new material.

b)

The DNA happens to just duplicate each base pair.

c)

Part of the original DNA is used to create each of the new DNA strands.

d)

The phosphate groups are no longer attached to the 5 carbon sugar or the leg bone.

13.

What is it called when DNA is copied?

a)

DNA

b)

DNA replication

c)

Nucleotide

d)

Nucleic Acid

14.

The end result of replication is ________________________.

a)

one new molecule of DNA

b)

two identical molecules of DNA

c)

two different molecules of DNA

15.

What is represented in the picture?

a)

amino acid

b)

fatty acid

c)

nucleotide

d)

protein

16.

What is this a picture of?

a)

DNA

b)

mRNA

c)

rRNA

d)

tRNA

17.

Where does Transcription take place?

a)

Inside the nucleus

b)

Inside the cytoplasm

c)

Inside the Ribosome

d)

Inside the Rough ER

18.
What does mRNA do?
a)
provides information from DNA to ribosomes
b)
transfers amino acids to the ribosomes
c)
makes up ribosomes
d)
builds proteins
19.
What does rRNA do?
a)
provides information from DNA to ribosomes
b)
transfers amino acids to the ribosomes
c)
makes up ribosomes
d)
builds proteins
20.
What does tRNA do?
a)
provides information from DNA to ribosomes
b)
transfers amino acids to the ribosomes
c)
makes up ribosomes
d)
builds proteins
21.
RNA contains the sugar
a)
ribose
b)
deoxyribose
c)
glucose
d)
lactose
22.
One difference between DNA and RNA is that RNA....
a)
is double stranded 
b)
contains the base Thymine
c)
contains the base Uracil 
d)
contained the base Guanine
23.
The anti-codon 
a)
contains a sequence the same as the codon
b)
contains a sequence complementary to the codon 
c)
contains the base thymine
24.
Amino acids are joined together in order to form
a)
DNA
b)
ribosomes
c)
proteins 
d)
RNA
25.
Transcribe the following piece of DNA:
ATCGTA
a)
UAGCAU
b)
TAGCAT
c)
ATCGTA
d)
AUCGUA
26.
Which amino acid is made from the RNA codon UUA?
a)
Phenylalanine
b)
Leucine
c)
Serine
d)
Tyrosine
27.
Which amino acid is made from the RNA codon GUA?
a)
Phenylalanine
b)
Leucine
c)
Serine
d)
Valine
28.
What is the correct sequence?
a)
RNA --> DNA --> Protein
b)
Protein --> RNA --> DNA
c)
DNA --> RNA --> Protein
d)
DNA --> Protein --> RNA
29.
How many bases are in one codon?
a)
1
b)
2
c)
3
d)
4