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DNA cutters

Total questions: 12

Worksheet time: 11mins

Name
Class
Date
1.
Restriction Enzymes are . . . 
a)
proteins
b)
DNA
c)
fats
d)
carbohydrates
2.
Restriction Enzymes . . . 
a)
cut DNA at precise locations
b)
help bacteria to pick up DNA
c)
move DNA through a gel
d)
copy DNA
3.
Restriction Enzymes come from . . . 
a)
viruses
b)
bacteria
c)
goats
d)
spiders
4.
Why do bacteria have restriction enzymes?
a)
To prevent being infected by viruses
b)
To help DNA get into the cell
c)
To be able to grow in an incubator
d)
They don't - viruses have restriction enzymes
5.
Restriction enzymes need the right temperature and buffer in order to work because . . . 
a)
they recreate the conditions from the bacteria at which the enzyme works 
b)
they cut the DNA
c)
they allow the DNA to move through the gel 
d)
they aren't needed - it's just a waste of time
6.

How many restriction sites appear in the picture?

a)

1

b)

2

c)

3

d)

4

7.

Who discovered Restriction Enzymes?

a)

a).Watson and Crick

b)

b).Arber and Linn

c)

c).Jacob and Monod

d)

d).Beadle and Tatum

8.

1. The DNA base sequences recognized by Endonuclease are called

a)

a).Restriction Site

b)

b). Recognition Site

c)

c).Fragmentation Site

d)

d).cutting Site

9.

Which was the first Type 2 Restriction Enzyme discovered ?

a)

a).HindII

b)

b). EcoRI

c)

c).BamHI

d)

d).HindIII

10.

The recognition sites for restriction enzymes are :

a)

a).Tautomer

b)

b). Pallindrome

c)

c).Metamere

d)

d).Acronym

11.

Restriction enzymes belong to class of enzymes:

a)

a).Peptidase

b)

b).Amylases

c)

c).Lipases

d)

d).Nucleases

12.

How many fragments resulted from the cut above?

a)

1

b)

2

c)

3

d)

4