WorksheetsIntroduction to DNA Quiz
Total questions: 23
Worksheet time: 40mins
Name
Class
Date
1.
What does DNA stand for?
a)
Deoxyribonucleic acid
b)
Denitrogenous acid
c)
Deribonucleic acid
d)
Diribonucleic acid
2.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
3.
DNA is a polymer made of:
a)
Nucleotides
b)
Ribosomes
c)
Purines
d)
Pyrimidines
4.
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
5.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
ribosome
d)
nucleus
6.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
7.
What will the matching sequence be on a strand that reads AAGCTAT?
a)
AACGATA
b)
TTCGTTA
c)
CCTGATA
d)
TTCGATA
8.
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
9.
DNA codes for...
a)
bases
b)
proteins
c)
amino acids
d)
phosphates
10.
What shape is DNA?
a)
a circle
b)
a triangle
c)
a double helix
11.
What is this a picture of?
a)
nucleotide
b)
DNA strand
c)
chromosome
d)
gene
12.
Identify #2.
a)
nitrogen base
b)
phosphate group
c)
deoxyribose sugar
d)
nucleotide
13.
X outlines a(n) ___________.
a)
amino acid
b)
nitrogen base
c)
nucleotide
d)
nitrogen base pair
14.
What does this image represent?
a)
Chromosome
b)
Gene
c)
Nucleus
d)
Nitrogen Bases
15.
What is the matching nitrogen base sequence for the gene below?
A-
T-
C-
a)
T-
G-
T-
b)
G-
C-
A-
c)
T-
A-
G-
16.
Bundled up, organized DNA is called a
a)
gene
b)
trait
c)
chromosome
d)
nucleotide
17.
What is a gene?
a)
A bundle (like a hot dog bun) that the DNA is packed into
b)
something inside the nucleus
c)
a section/piece of DNA that codes for a trait
d)
all of your DNA
18.
A gene determines a __________ such as eye or hair color.
a)
nucleus
b)
DNA
c)
chromosome
d)
Trait
19.
How many pairs of chromosomes do humans have?
a)
43
b)
22
c)
23
d)
46
20.
What is it called when DNA wraps on itself to form a chromosome? (spelling counts!)
(a)
21.
Who is responsible for producing this image?
a)
Francis Crick
b)
James Watson
c)
Rosalind Franklin
d)
Watson and Crick
22.
What did Erwin Chargaff conclude from his experiments?
a)
Nitrogen bases are held together by peptide bonds
b)
A and T, C and G always occur in equal amounts
c)
Proteins are the carriers of genetic information
d)
C and G rarely occur in eukaryotic organisms
23.
What was Watson and Crick's main scientific accomplishment?
a)
Building the first accurate model of DNA
b)
Isolating strains of pneumonia causing bacteria
c)
Determining base pairing rules
d)
Discovering the process of genetic transformation
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