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DNA & DNA Replication

Total questions: 15

Worksheet time: 4hrs 31mins

Name
Class
Date
1.

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

2.
The enzyme that unwinds the DNA to prepare for replication
a)
helicase
b)
replicase
c)
polymerase
d)
synthase
3.

These pictures shows the different stages of replication. Place them in order from start to finish.

a)

3, 4, 2, 1

b)

3, 1, 4, 2

c)

2, 1, 4, 3

d)

3, 4, 1, 2

4.
Why does DNA replicate?
a)
To create another copy for the new cell
b)
To create a duplicate copy in case the original gets damaged
c)
To create a new copy to replace the damaged original
5.

What are the products of DNA Replication?

a)

1 DNA Molecule

b)

2 Identical DNA molecules, each with one new strand and one old strand

c)

2 completely new DNA molecules

d)

4 new molecules of DNA

6.

Which enzyme is involved in the last step of DNA replication and proofs and then reseals the two strands?

a)

Ligase

b)

Polymerase

c)

Helicase

d)

Primase

7.
A DNA nucleotide contains all of the following, except...
a)
Deoxyribose
b)
Phosphate group
c)
Nitrogenous base
d)
Cholesterol
8.
What is the shape of DNA?
a)
Double helix
b)
Triple helix
c)
Flat, bilayer
d)
Three-pronged rigid ladder
9.

What is the monomer of DNA?

a)

Amino acid

b)

Monosacchardie

c)

Glycerol + Fatty acid

d)

Nucleotide

10.

Pick the correct Base-Pair rules for DNA.

a)

A pairs with T, G pairs with C

b)

A pairs with G, T pairs with C

c)

A pairs with C, T pairs with G

d)

There are no rules, bases can pair however

11.

At the end of DNA replication, each new (or daughter) molecule has one new strand and one original strand. What name do we give to this process?

a)

Semiconservative

b)

Semicircle

c)

Semipermeable

d)

Rigid

12.

Where in the cell does DNA Replication happen?

a)

At the ribosome

b)

In the nucleus

c)

In the cytoplasm

d)

In the mitochondria

13.

Who is credited with the discovery of the structure of DNA?

a)

Wilkins

b)

Franklin

c)

Watson & Crick

d)

Mendel

14.

Which of the following is the function of DNA? (SELECT TWO)

a)

Store and transfer genetic information from parent to offspring

b)

Contains the codes for building proteins

c)

Makes energy for the cell

d)

Stores excess material in the cell

15.

What makes each person's DNA unique?

a)

The sugars in the nucleotides

b)

The phosphate groups in the nucleotides

c)

The sequence of nitrogen bases

d)

The number of ribosomes the person's cell has