WorksheetsChromosomes and Genes
Total questions: 16
Worksheet time: 15mins
Name
Class
Date
1.
What are the nucleotides made of?
a)
Sugar, Phosphate, nitrogen base
b)
Phosphate, Adenine, nitrogen base
c)
Thymine, Adenine, Cytomine
d)
Phosphate, Nitrogen, Adenine
2.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
3.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
4.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
5.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
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.
The shape of the DNA molecule is a double __________________?
a)
"S"
b)
helix
c)
rope
d)
curve
8.
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
9.
A chromosome is made of coiled up ___________.
a)
cells
b)
nuclei
c)
DNA
10.
Little pieces of DNA that code for our traits are called
a)
cells
b)
chromosomes
c)
genes
11.
How many chromosomes are found in each cell of your body?
a)
46
b)
23
c)
40
d)
45
12.
How many pairs of chromosomes do human cells contain?
a)
23
b)
46
c)
16
d)
32
13.
What is a short segment of a DNA strand that codes for our characteristics?
a)
chromosome
b)
DNA
c)
RNA
d)
gene
14.
How many chromosomes are found in each cell of your body?
a)
46
b)
23
c)
40
d)
45
15.
How many pairs of chromosomes do human cells contain?
a)
23
b)
46
c)
16
d)
32
16.
Why are your chromosomes arranged in pairs?
a)
Scientists have no idea
b)
Because you get one from your mom and one from your dad
c)
Because pairs can divide easier
d)
Because DNA is awesome
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