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DNA, RNA, Replication & Transcription

Total questions: 40

Worksheet time: 53mins

Name
Class
Date
1.
What is the function of DNA helicase?
a)
Attach new nucleotides
b)
To unzip the strands of DNA
c)
Remove nucleotides
d)
To perform crossing over
2.
DNA replication results in two DNA molecules,
a)
each one with two original strands
b)
each one with two new strands
c)
each one with one new strand and one original strand
d)
one with two new strands and the other with two original strands
3.
Which of these bases does not exist in RNA?
a)
C
b)
T
c)
U
d)
A
4.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
5.
Which is a difference between DNA and RNA
a)
RNA is double stranded
b)
RNA is not made of nucleotides
c)
RNA contains Uracil instead of Thymine
d)
RNA does not contain a sugar
6.
Which process is used to make mRNA from the DNA in the nucleus?
a)
transcription
b)
translation
c)
replication 
7.
In DNA replication, which enzyme is responsible for building the new DNA strand?
a)
helicase
b)
polymerase
c)
ligase
d)
primase
8.
What is the process of turning DNA into mRNA?
a)
Central Dogma
b)
Transcription
c)
Translation
d)
Trapezoid
9.

Which of the following base pairs with adenine in RNA?

a)

thymine

b)

guanine

c)

uracil

d)

cytosine

10.

DNA is _____ stranded and RNA is ______ stranded.

a)

single, double

b)

single, single

c)

double, single

d)

double, double

11.

RNA...

a)

is a temporary copy of DNA

b)

is double stranded

c)

contains A T G C nucleotides

d)

contains deoxyribose sugar

12.

Which of the following are types of RNA? (Select all that apply).

a)

mRNA (messenger RNA)

b)

pRNA (primer RNA)

c)

tRNA (transfer RNA)

d)

rRNA (ribosomal RNA)

13.
What is the backbone of DNA made of?
a)
Nitrogen bases
b)
Amino acids
c)
Double H
d)
Sugar & Phosphate
14.

The Central Dogma says that information moves in one direction from...

a)

DNA - RNA - Protein

b)

Protein - RNA - DNA

c)

DNA - Protein - RNA

d)

RNA - DNA - Protein

15.

What is the name of segment of DNA that codes for a protein?

a)

double helix

b)

single strand

c)

gene

d)

transcript

16.

The Central Dogma says that information moves in one direction through....

a)

Replication - Translation - Transcription

b)

Transcription - Translation - Replication

c)

Replication - Transciption - Translation

d)

Transcription - Replication - Translation

17.

Replication produces

a)

two identical copies of DNA

b)

two identical copies of RNA

c)

one DNA and one RNA molecule

d)

two copies of DNA that are not identical

18.

Transcription produces

a)

only one copy of DNA

b)

one or more copies of RNA

c)

many copies of DNA

d)

only one copy of RNA

19.

The intermediate molecule between DNA and protein is

a)

tRNA

b)

mRNA

c)

rRNA

d)

pRNA

20.

This type of RNA makes up ribosomes.

a)

rRNA

b)

tRNA

c)

pRNA

d)

mRNA

21.

This type of RNA brings amino acids to the ribosome during protein production.

a)

mRNA

b)

rRNA

c)

tRNA

d)

pRNA

22.

During DNA replication, the ______ strand is replicated in a smooth, continuous flow.

a)

leading

b)

lagging

c)

prime

d)

main

23.

During DNA replication, the ______ strand is replicated in a choppy, discontinuous way.

a)

leading

b)

lagging

c)

secondary

d)

minor

24.

If a strand of nucleic acid reads ATTCTGA, you can tell that it's a strand of

a)

DNA

b)

RNA

25.

If a strand of nucleic acid reads GUCUAGUCA, you can tell it's a strand of

a)

DNA

b)

RNA

26.

If a DNA strand reads ATCGT what would the complimentary DNA strand read?

a)

TAGCA

b)

TCAGT

c)

ATCGT

d)

CGTGC

27.

If a strand of DNA reads GTTAC, the complimentary strand of RNA would read

a)

GTTAC

b)

CAAUG

c)

GUUAC

d)

ACCUG

28.

In eukaryotes, DNA replication and transcription both take place

a)

in the cytoplasm

b)

in the golgi apparatus

c)

in the ribosomes

d)

in the nucleus

29.
The two strands of a DNA molecule are held together by ________ bonds between their base pairs.
a)
covalent
b)
hydrogen
c)
ionic
d)
peptide
30.

DNA polymerase typically has an error rate of ___ nucleotides.

a)

1 in 1 billion

b)

10 in 1 billion

c)

1 in 1 million

d)

10 in 1 million

31.

RNA transcription...

a)

copies the entire DNA strand

b)

copies only 1 DNA strand

c)

copies part of the double helix

d)

copies only a small segment (gene)

32.

________ makes only one copy, but ______ can make many copies.

a)

transcription, replication

b)

translation, transcription

c)

replication, transcription

d)

replication, translation

33.

True or False: The double helix unwinds during transcription AND replication.

a)

True

b)

False

34.

True or False: Both replication and transcription use a polymerase enzyme.

a)

True

b)

False

35.

This enzyme helps helicase unzip DNA by relieving supercoiling

a)

Topoisomerase

b)

Exonuclease

c)

DNA Primase

d)

DNA Polymerase

36.

How many nucleotides make up a codon?

a)

1

b)

3

c)

5

d)

15

37.
What amino acid is represented by the codon UUA?
a)
Phenylalanine
b)
Tyrosine
c)
Leucine
d)
Stop codon
38.
The codon CCU codes for what amino acid?
a)
Isoleucine
b)
Stop
c)
Methionine
d)
Proline
39.

what does tRNA do?

a)

carry amino acids

b)

carry glucose

c)

carry lipids

d)

carry ribosomes

40.
Any change in the sequence of DNA is...
a)
transgenic shift
b)
Single Genotype
c)
Monohybrid Trait
d)
Mutation

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