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WorksheetsGenetics-DNA
Total questions: 22
Worksheet time: 11mins
Name
Class
Date
1.
What is the role of DNA?
a)
carries genetic information to ribosomes
b)
stores genetic information
c)
translates genetic code of mRNA
d)
erases genetic information
2.
What is the scientific name for the shape of DNA?
a)
twisted ladder
b)
spiral staircase
c)
double helix
d)
twister
3.
In base pairing, A (Adenine) always pairs with...
a)
C (Cytosine)
b)
G (Guanine)
c)
A (Adenine)
d)
T (Thymine)
4.
Sections of DNA that code for traits are called
a)
nucleotides
b)
genes
c)
sugars
d)
phosphates
5.
Find the complementary strand to A T A C G
a)
G T A C C
b)
T A C G T
c)
T A T G C
d)
A C G T T
6.
Nucleotides are made up of a sugar, phosphate, and..?
a)
nitrogenous base
b)
nucleic acid
c)
cholesterol
d)
fatty acid
7.
In base pairing C (Cytosine) always pairs with
a)
G (Guanine)
b)
A (Adenine)
c)
C (Cytosine)
d)
T (Thymine)
8.
What mutation has occurred here?
ATTTGAGCC- Original
ATTGAGCC - Mutated
ATTTGAGCC- Original
ATTGAGCC - Mutated
a)
Addition
b)
Substitution
c)
Deletion
d)
All of the above
9.
What is the role of mRNA?
a)
carries genetic information to ribosomes
b)
stores genetic information
c)
translates genetic code of mRNA
d)
erases genetic information
10.
What is the role of tRNA?
a)
carries genetic information to ribosomes
b)
stores genetic information
c)
translates genetic code of mRNA
d)
erases genetic information
11.
Find the translation of the following DNA sequence: AATGCGT
a)
UUACGCA
b)
UUCGCAU
c)
UGCATTA
d)
UUACCCA
12.
The function of a protein
a)
is used in the body for building, repair, and maintenance
b)
helps transfer DNA
c)
is used in creating DNA
d)
helps make sugars
13.
Enzymes are a type of protein used to
a)
Build bones in skeleton
b)
Send hormonal signals throughout body
c)
Speed up chemical reactions
d)
Photosynthesize glucose in plants
14.
What mutation has occurred here?
TGACCA - ORIGINAL
TGAGCA - MUTATED
TGACCA - ORIGINAL
TGAGCA - MUTATED
a)
Substitution
b)
Deletion
c)
Addition
d)
Frameshift
15.
The molecular sequence, or blueprint for a protein, is originally carried by which molecule?
a)
ATP
b)
DNA
c)
rRNA
d)
tRNA
16.
A simple change in DNA results in:
a)
death of the cell
b)
replication of the cell
c)
a mutation in the cell
d)
an adaptation
17.
Amino acids make up:
a)
sugars
b)
fats and oils
c)
proteins
d)
hydrocarbons
18.
Trisomy 21 is an example of
a)
insertion
b)
inversion
c)
crossing over
d)
nondisjunction
19.
Identify the correct sequence of molecules
a)
DNA -> messenger RNA -> transfer RNA -> protein
b)
protein-> messenger RNA -> transfer RNA -> DNA
c)
DNA -> transfer RNA -> messenger RNA -> protein
d)
protein-> DNA -> messenger RNA -> transfer RNA
20.
The sequence of __________ in a DNA molecule determines the protein that will be produced.
a)
lipids
b)
nucleotides
c)
proteins
d)
sugars
21.
A mutation in a man's sex chromosomes will result in:
a)
a mutation in his offspring
b)
a shorter life
c)
lifelong disabilities
22.
An agent, such as radiation or a chemical substance, that causes changes in genetic material is called a:
a)
mutagen
b)
mitosis
c)
toxin
d)
virus
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