WorksheetsDo-It-Yourself DNA (PBS)
Total questions: 20
Worksheet time: 17mins
Name
Class
Date
1.
The shape of the DNA molecule is a double __________________?
a)
"S"
b)
helix
c)
rope
d)
curve
2.
Where is DNA found???
a)
Cell membrane
b)
Nucleus
c)
Cell wall
d)
Auditorium
3.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
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 of the following units are repeatedly joined together to form a strand of DNA?
a)
amino acids
b)
nucleotides
c)
fatty acids
d)
polysaccharides
6.
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
7.
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
8.
Nitrogenous bases are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
9.
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
10.
What sugar is in DNA?
a)
deoxyribose
b)
ribose
c)
oxyribose
d)
deoxyose
11.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose sugar and adenine
b)
deoxyribose sugar and a hydrogen bond
c)
deoxyribose sugar and the nucleus
d)
deoxyribose sugar and phosphate
12.
Replicate the following strand of DNA:
AATCATGGA
AATCATGGA
a)
AATCATGGA
b)
TTAGTACCT
c)
UUAGUACCU
d)
GGATAUCUA
13.
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
14.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
15.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
16.
What does DNA stand for?
a)
Deoxyribonucleic acid
b)
Denitrogenous acid
c)
Deribonucleic acid
d)
Diribonucleic acid
17.
Identify #2.
a)
nitrogen base
b)
phosphate group
c)
deoxyribose sugar
d)
nucleotide
18.
Identify #1.
a)
nitrogen base
b)
phosphate group
c)
deoxyribose sugar
d)
nucleotide
19.
Identify #3.
a)
nitrogen base
b)
phosphate group
c)
deoxyribose sugar
d)
nucleotide
20.
Identify #4.
a)
nitrogen base
b)
phosphate group
c)
deoxyribose sugar
d)
nucleotide
100 %
