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1.5 DNA

Total questions: 31

Worksheet time: 23mins

Name
Class
Date
1.

What are the parts of a nucleotide?

a)

phosphate, sugar, base

b)

A, T, G, C

c)

Nucleic Acids

d)

two base pairs connected

2.

Which of the following is correctly matches: ATT GTA CGA

a)

TAA CAT GCT

b)

ATT GTA CGA

c)

TAA GTA TCG

d)

GCC ACG TAC

3.

Antiparallel strands of nucleotides run in

a)

opposite directions

b)

the same direction

c)

base pairs

d)

chromosomes

4.

The base that pairs with Thymine in DNA

a)

adenine

b)

guanine

c)

helicase

d)

nucleotide

5.

The nitrogen base that pairs with guanine

a)

adenine

b)

cytosine

c)

nucloetide

d)

deoxyribose

6.
If we think of DNA as a ladder, which parts are the steps of the ladder?
a)
the nitrogenous base pairs
b)
the phosphate-sugar backbone
c)
the genes
d)
the phospholipid bilayer
7.
If we think of DNA as a ladder, which parts are the sides of the ladder?
a)
the nitrogenous base pairs
b)
the phosphate-sugar backbone
c)
the genes
d)
the phospholipid bilayer
8.
If a strand reads:
3' A A A T T T C 5'
The matching strand would read...
a)
5' T T T A A A G 3'
b)
3' T T T A A A G 5'
c)
5' A A A T T T C 3'
d)
3' U U U A A A G 5'
9.
This picture is illustrating the ____ nature of DNA.
a)
anti-parallel
b)
deoxyribosic
c)
helical
d)
radioactive
10.
A DNA nucleotide contains all of the following, except...
a)
Deoxyribose
b)
Phosphate group
c)
Nitrogenous base
d)
Cholesterol
11.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
ribosome
d)
nucleus
12.
Name this structure
a)
double helix
b)
nucelotide
c)
twisted ladder
d)
hydrogen bond
13.
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
14.

Which series is arranged in order from largest to smallest in size?

a)

gene, chromosome, nucleus, nucleotide

b)

nucleus, chromosome, gene, nucleotide

c)

nucleotide, gene, chromosome, nucleus

d)

nucleotide, nucleus, chromosome, gene

15.
Nitrogenous bases are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
16.
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
17.
What sugar is in DNA?
a)
deoxyribose
b)
ribose
c)
oxyribose
d)
deoxyose
18.

A base made up of 1 carbon ring is classified as a:

a)

Purine

b)

Pyrmidine

19.

A base made up of 2 carbon rings is classified as a:

a)

Purine

b)

Pyrmidine

20.

Which 2 bases are considere purines?

a)

Adenine

b)

Thymine

c)

Cytosine

d)

Guanine

21.

Which 2 bases are considere pyrmidines?

a)

Adenine

b)

Thymine

c)

Cytosine

d)

Guanine

22.

Which answer below correctly states the base-pair rule used in DNA?

a)

A with C

T with G

b)

A with G

C with T

c)

A with T

C with G

23.

How many hydrogen bonds are found between adenine and thymine?

a)

1

b)

2

c)

3

d)

4

24.

How many hydrogen bonds are found between guanine and cytosine?

a)

1

b)

2

c)

3

d)

4

25.

The monomer of DNA is a(n)

a)

Amino acid

b)

Monosaccharide

c)

Hydrocarbon

d)

Nucleotide

26.

If my DNA consists of 34% cytosine, how much guanine would it have?

a)

56%

b)

50%

c)

34%

d)

28%

27.

Which of the following are the bases for RNA?

a)

adenine, uracil, thymine, and guanine

b)

adenine, uracil, guanine, and cytosine

c)

adenine, thymine, guanine, and cytosine

d)

adenine, uracil, thymine, and cytosine

28.

Which statement is true about RNA?

a)

RNA is usually single stranded and contains the base uracil

b)

RNA is usually double stranded and contains the base thymine

c)

RNA is made in the nucleus and stays there to carry out its function

d)

All of the above are true.

29.

RNA and DNA are composed of different sugars. Which of the following statements are true?

a)

RNA uses ribose and DNA uses deoxyribose.

b)

RNA uses deoxyribose and DNA uses ribose.

c)

DNA and RNA both use ribose sugars.

d)

DNA and RNA both use deoxyribose sugars.

30.
Why does DNA stay in the nueclus?
a)
To protect it from becoming damaged.
b)
It is lazy. 
c)
It is grounded. 
d)
It cannot move. 
31.

What kind of sugar does RNA have?

a)

Deoxyribose

b)

Galactose

c)

lactose

d)

Ribose

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