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DNA/RNA

Total questions: 46

Worksheet time: 1hrs 4mins

Name
Class
Date
1.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
2.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
3.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
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.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
6.
What determines the code, or information, of a DNA molecule?
a)
the shape (structure) of the nitrogen bases
b)
the order (sequence) of the nitrogen bases
c)
the color of the nitrogen bases
d)
the frequency (number) of nitrogen bases
7.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose sugar and adenine
b)
deoxyribose sugar and a hydrogen bond
c)
deoxyribose sugar and the nucleus
d)
deoxyribose sugar and phosphate
8.
What are the three components of a nucleotide?
a)
sugar, hydrogen, nitrogen base
b)
sugar, oxygen, nitrogen base
c)
sugar, phosphate, nitrogen base
d)
sugar, phosphate, protein
9.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
10.
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
11.
Which two scientists are accredited with correctly deducing the double helix model of DNA?
a)
Watson and Crick
b)
Wilkins and Franklin
c)
Wilkins and Crick
d)
Watson and Franklin
12.
What does this picture represent?
a)
amino acid
b)
base pairing
c)
nucleotide
d)
the DNA molecule
13.
What is the difference between DNA and RNA in terms of bases?
a)
RNA contains uracil in place of thymine
b)
RNA contains uracil in place of adenine
c)
RNA contains uracil in place of guanine
d)
RNA contains uracil in place of  cytosine
14.
I travel outside of the nucleus.
a)
DNA
b)
RNA
15.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
16.
A portion of mRNA is coded CUG. The corresponding DNA is coded
a)
GAC
b)
GTC
c)
CTG
d)
CAG
17.
A portion of DNA reads GAG. The corresponding mRNA would be
a)
GUG
b)
GTG
c)
CTC
d)
CUC
18.

What combines together to make a protein?

a)

Amino Acid

b)

RNA

c)

Ribosome

d)

DNA

19.

The transfer of genetic info from DNA to RNA is called

a)

translation

b)

transcription

c)

initiation

d)

elongation

20.
What is the location in the cell for transcription?
a)
nucleus
b)
cytoplasm
c)
ribosome
d)
mitochondria
21.
Protein synthesis takes place in two parts:
a)
Transcription then translation
b)
Replication then transcription
c)
Translation then transcription
d)
Replication then translation
22.

Each base will only bond with one other specific base. For DNA replication, what bases always pair together?

a)

Adenine - Guanine

Cytosine - Thymine

b)

Thymine - Adenine

Cytosine - Guanine

c)

Adenine - Uracil

Thymine - Cytosine

d)

Adenine - Uracil

Cytosine - Guanine

23.
If a section of DNA has 13% thymine, then there is _____ adenine
a)
13%
b)
26%
c)
37%
d)
74%
24.
RNA has how many strands?
a)
one
b)
two
25.
If a DNA strand reads ATT CGT CTA, what would the mRNA strand read?
a)
TAA GCA GAT
b)
CGA TGA GUT
c)
UAA GCA GAU
d)
TAA GCA GUT
26.

In eukaryotes, which organelle is DNA usually found in?

a)

cell membrane

b)

vacuole

c)

chloroplast

d)

nucleus

27.

What is the difference between DNA and RNA in terms of bases?

a)

RNA contains uracil in place of thymine

b)

RNA contains uracil in place of guanine

c)

RNA contains uracil in place of adenine

d)

RNA contains uracil in place of cytosine

28.

What determines the code, or information, of a DNA molecule?

a)

the shape (structure) of the nitrogen bases

b)

the color of the nitrogen bases

c)

the order (sequence) of the nitrogen bases

d)

the frequency (number) of nitrogen bases

29.
_______ is made during transcription and ________ is made during translation.
a)
mRNA / a protein
b)
a protein / mRNA
c)
Ribosome / Nucleus
d)
mRNA / tRNA
30.
What amino acid is represented by the codon CAG?
a)
Aspartic Acid
b)
Histidine
c)
Glutamine
d)
Methionine
31.
Translation happens in the - 
a)
Nucleus
b)
Ribosome
c)
Chloroplast
d)
Smooth Endoplasmic Reticulum
32.

. What are the building blocks of proteins called?

a)

nucleotides

b)

proteins

c)

amino acids

d)

carbohydrates

33.

B is pointing at the

a)

mRNA

b)

nucleus

c)

tRNA

d)

codon

34.

D is pointing at the

a)

mRNA

b)

nucleus

c)

tRNA

d)

codon

35.

how many amino acids are there?

a)

5

b)

20

c)

23

d)

46

36.

What is the correct sequence for protein synthesis?

a)

rRNA --> DNA --> Protein---->mRNA

b)

Protein --> rRNA --> DNA---->tRNA

c)

DNA ----> mRNA ---->tRNA----> Protein

d)

DNA --> Protein --> tRNA-->mRNA

37.
What process is occurring in this photo?
a)
Transcription
b)
DNA unwinding
c)
Translation
d)
Transfer RNA is creating bases
38.

The mRNA bases are read in groups of

a)

1.

b)

2.

c)

3.

d)

4.

39.
What type of RNA carries the DNA message out of the nucleus to the ribosomes?
a)
mRNA
b)
tRNA
c)
RNA
d)
DNA
40.
When DNA is transcribed to RNA.... 
a)
A pairs with U
b)
C pairs with U
c)
A pairs with T
d)
C pairs with T
41.
What process is occurring in this photo?
a)
Transcription
b)
Translation
c)
mRNA is matching with amino acids
d)
tRNA is transcribing the DNA
42.

Human beings may look different, but _______ of our DNA is the same.

a)

99.9%

b)

98.9%

c)

97.9%

d)

96.9%

43.

Who were the two scientists who won the Nobel Prize for discovering the structure of DNA?

a)

James Watson and Rosalind Franklin

b)

Francis Crick and Rosalind Franklin

c)

Rosalind Franklin and Maurice Wilkins

d)

James Watson and Francis Crick

44.

Identify the following:

Letter D

a)

nucleotide

b)

phosphate

c)

adenine

d)

deoxyribose sugar

45.

Which scientist took the first x-ray image that showed the double helix structure of DNA?

a)

Francis Crick

b)

James Watson

c)

Rosalind Franklin

d)

Gregor Mendel

46.

Segments of DNA are called _______________________

a)

Genes

b)

Alleles

c)

Traits

d)

Chromosomes

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