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DNA Intro

Total questions: 12

Worksheet time: 14mins

Name
Class
Date
1.
What does DNA do?
a)
a.  It carries genetic codes from parents to offspring.
b)
a.  It carries oxygen from the lungs to the body.
c)
a.  It tells you who you are.
d)
a.  It defines the organism.
2.
What is the shape of a DNA?
a)
Double Helix
b)
Base Pairing
c)
The shape of you
d)
Hydrogen Bonding
3.
Adenine, Cytosine, Guanine and Thymine are examples of
a)

DNA structure

b)

DNA bases

c)

DNA double helix

d)

DNA sugars

4.
What holds the DNA bases together?
a)
Hydrogen bonds
b)
DNA bases
c)
Double Helix
d)
Paired bases
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.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
ribosome
d)
nucleus
7.
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

8.
Name this structure
a)
double helix
b)
nucelotide
c)
twisted ladder
d)
hydrogen bond
9.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
10.

What does a Double Helix look like?

a)

Twisted ladder

b)

Upside down ladder

c)

Sideways ladder

d)

Double circle

11.
A segment of DNA is called a
a)

chromosome

b)

gene

c)

amino acid

d)

protein

12.

How many chromosomes are in each human cell?

a)

23

b)

46

c)

32

d)

16