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WorksheetsDNA Structure 3IE
Total questions: 15
Worksheet time: 10mins
Name
Class
Date
1.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
2.
In DNA, 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 2 molecules forms the sides (backbone) of the DNA ladder?
a)
deoxyribose and adenine
b)
deoxyribose and a hydrogen bond
c)
sugar and the nucleus
d)
deoxyribose (sugar) and phosphate
5.
What does DNA stand for?
a)
Deoxyribonucleic acid
b)
Denitrogenous acid
c)
Deribonucleic acid
d)
Diribonucleic acid
6.
What is responsible for holding the two strands of the DNA double helix together?
a)
hydrogen bonds
b)
alleles
c)
London dispersion forces
d)
deoxyribose sugars
7.
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
8.
Replicate the following strand of DNA:
AATCATGGA
AATCATGGA
a)
AATCATGGA
b)
TTAGTACCT
c)
UUAGUACCU
d)
GGATAUCUA
9.
monomer of nucleic acid; consisting of a sugar, phosphate, and nitrogen base
a)
nucleotide
b)
guanine
c)
deoxyribose
d)
DNA
10.
The table shows the percentages of bases in a DNA sample. How much Thymine should you expect to find in the sample?
a)
22%
b)
28%
c)
24%
d)
44%
11.
Identify #2.
a)
nitrogen base
b)
phosphate group
c)
deoxyribose sugar
d)
nucleotide
12.
X outlines a(n) ___________.
a)
amino acid
b)
nitrogen base
c)
nucleotide
d)
nitrogen base pair
13.
The orange ball represents
a)
nitrogen base
b)
sugar
c)
phosphate
14.
In the image y represents
a)
phosphate
b)
sugar
c)
thymine
d)
adenine
15.
The molecule pictured is a monomer of _______.
a)
RNA
b)
DNA
c)
a carbohydrate
d)
a protein
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