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WorksheetsBju Biology Chapter 8 Basic Genetics
Total questions: 28
Worksheet time: 14mins
Name
Class
Date
1.
Which base is found in RNA but not in DNA?
a)
adenine
b)
uracil
c)
cytosine
d)
guanine
2.
As part of its structure, a known gene contains the base sequence AATCGA. An alteration of the sequence to AACCGA is known as
a)
deletion
b)
disjunction
c)
mutation
d)
segregation
3.
Where is DNA found in eukaryotic cells?
a)
Cytoplasm
b)
Vacuole
c)
Cell Membrane
d)
Nucleus
4.
This is the process of using a DNA template to make a strand of mRNA
a)
Translation
b)
Transcription
c)
Replication
d)
Mitosis
5.
The main difference between the four nucleotides that make up DNA is that they have different
a)
sugars.
b)
uracil.
c)
bonds.
d)
bases.
6.
During transcription, what does messenger RNA do?
a)
It delivers DNA's instructions for making proteins.
b)
It constructs proteins out of random amino acids.
c)
It strings together two complementary DNA strands.
d)
It strings together two complementary RNA strands.
7.
Biologists have learned that genetic information flows from
a)
RNA to DNA to polysaccharides.
b)
DNA to RNA to proteins.
c)
RNA to DNA to proteins.
d)
DNA to polysaccharides to RNA.
8.
Which of the following DNA sequences is complementary to the base sequence ACCGTAT?
a)
GTTACGC
b)
UCCGTAT
c)
TGGCATA
d)
CAATGCG
9.
What holds base pairs together?
a)
hydrogen bonds
b)
sugar-phosphate backbones
c)
pairs of double-ringed nucleotides
d)
nitrogen-carbon bonds
10.
One difference between DNA and RNA is that....
a)
Only RNA has the base URACIL
b)
only RNA contains the base THYMINE
c)
only RNA contains the base CYTOSINE
d)
only RNA contained the base GUANINE
11.
This cannot leave the nucleus
a)
DNA
b)
RNA
c)
Both
12.
Which shows the correct complementary base pairing for DNA?
a)
C-A, T-G
b)
A-G, C-T
c)
C-G, U-A
d)
T-A, G-C
13.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
14.
What are the 4 nitrogen bases?
a)
adenine, thymine, cytoplasm, and guanine
b)
adenine, thymine cytosine, and guanine
c)
adenine, thymine, cytosine, and gylcerol
d)
adenine, thymine, cytosine, and glucose
15.
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
16.
What sugar is found in DNA
a)
Sucrose
b)
deoxyribose
c)
Phosphate
d)
ribose
17.
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
18.
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
19.
Nucleotides are made up of a sugar, phosphate, and..?
a)
nitrogenous base
b)
nucleic acid
c)
cholesterol
d)
fatty acid
20.
Which two bases are pyrimidines
a)
thymine and cytosine
b)
cytosine and guanine
c)
thymine and adenine
d)
guanine and adenine
21.
which two bases are purines
a)
adenine and guanine
b)
thymine and cytosine
c)
adenine and thymine
d)
guanine and cytosine
22.
What does DNA stand for
a)
deoxyribose nucleic acid
b)
ribose nucleic acid
c)
delicate nucleic acid
d)
double nucleotide acid
23.
Watson and Crick were the first to suggest that DNA is _____
a)
a short molecule
b)
the shape of a double helix
c)
a protein molecule
d)
the genetic material
24.
Enzyme that is responsible for assembling the new strand of DNA.
a)
DNA helicase
b)
RNA
c)
DNA Polymerase
d)
RNA Polymerase
25.
Process where one DNA molecule copies itself
a)
Transcription
b)
Translation
c)
Replication
d)
Mutation
26.
Received the noble prize for their discovery of DNA.
a)
Watson
b)
Crick
c)
Wilkins
d)
All of them
27.
In step 1 of DNA replication DNA is uncoiled by an enzyme called
a)
lagging strand
b)
leading strand
c)
helicase
28.
On a double helix the two strands run in opposite directions. This means they are:
a)
parallel
b)
base pairs
c)
antiparallel
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