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Lembar kerjaCh 11 Test Review
Total soal: 29
Worksheet time: 15mins
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1.
Which of the following would be least likely to happen as a result of a mutation in a person's skin cells?
a)
skin cancer
b)
reduced functioning
c)
no change in functioning
d)
person's offspring have mutated skin
2.
Which series is arranged in order from largest to smallest in size?
a)
chromosome, nucleus, cell, DNA, nucleotide
b)
cell, nucleus, chromosome, DNA, nucleotide
c)
nucleotide, chromosome, cell, DNA, nucleus
d)
cell, nucleotide, nucleus, DNA, chromosome
3.
X rays, UV light & radioactive substances that can change the chemical nature of DNA are classified as __.
a)
growth regulators
b)
metamorphic molecules
c)
hydrolytic enzyme
d)
mutagens
4.
A DNA segment is changed from - AATTAG - to - AAATAG -. This is a __.
a)
frameshift mutation
b)
point mutation
c)
inversion
d)
deletion
5.
Messenger RNA is formed in the process of __.
a)
transcription
b)
translation
c)
replication
d)
mutation
6.
An RNA molecule is a polymer composed of subunits known as __.
a)
polysaccharides
b)
ribose molecules
c)
nucleotides
d)
uracil
7.
The backbone of a DNA molecule is made of which two components?
a)
phosphate & ribose
b)
deoxyphosphate & ribose
c)
phosphate & deoxyribose
d)
deoxyphosphate & deoxyribose
8.
Which one of the following nucleotide pair bonds would be found in a DNA molecule?
a)
adenine-guanine
b)
guanine-cytosine
c)
adenine-cytosine
d)
cytosine-uracil
9.
A DNA segment is changed from -AATTAGAAATAG- to -ATTAGAAATAG-. That is a __.
a)
frameshift mutation
b)
point mutation
c)
inversion
d)
translation
10.
Pyrimidine
a)
guanine
b)
thymine
c)
phosphate
d)
nucleotide
11.
Watson & 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
12.
The pairing of __ in DNA is the key feature that allows DNA to be copied.
a)
nucleotides
b)
nitrogen bases
c)
chromosomes
d)
codons
13.
A DNA nucleotide may be made up of a phosphate group, along with __.
a)
deoxyribose & uracil
b)
ribose & adenine
c)
deoxyribose & thymine
d)
ribose & cytosine
14.
The process by which a DNA molecule is copied
a)
binary fission
b)
mitosis
c)
replication
d)
translation
15.
Ribosomes are made of
a)
rRNA & protein
b)
tRNA & mRNA
c)
rRNA & mRNA
d)
protein & tRNA
16.
The chromosome abnormality that occurs when part of one chromosome breaks off and is added to a different chromosome is __.
a)
deletion
b)
nondisjunction
c)
translocation
d)
inversion
17.
Identify the following types of chromosome changes.
abcdef --> abcedf
abcdef --> abcedf
a)
inversion
b)
deletion
c)
translocation
d)
insertion
18.
Identify the following types of chromosome changes.
abcdef --> abcef
abcdef --> abcef
a)
inversion
b)
deletion
c)
tranlocation
d)
insertion
19.
Identify the following types of chromosome changes.
abcdef --> abcd56
abcdef --> abcd56
a)
inversion
b)
deletion
c)
translocation
d)
insertion
20.
Watson & Crick called the three-dimensional shape of DNA
a)
double helix
b)
translation
c)
codon
d)
replication
21.
Adenine is to thymine as guanine is to _.
a)
codon
b)
nitrogen base
c)
mRNA
d)
cytosine
22.
The process of converting RNA code into an amino acid sequence
a)
double helix
b)
translation
c)
tRNA
d)
mRNA
23.
A change in a single base pair of the DNA molecule that affects the synthesis of an entire protein.
a)
point mutation
b)
frameshift mutation
c)
tRNA
d)
codon
24.
Brings amino acids to the ribosome for the assembly of proteins
a)
nitrogen base
b)
tRNA
c)
mRNA
d)
rRNA
25.
Each set of three nitrogen bases representing an amino acid
a)
mRNA
b)
translation
c)
codon
d)
replication
26.
If a nucleotide is added or removed from a DNA molecule and mRNA is created, the codons after the mutation will not be read correctly.
a)
frameshift mutation
b)
point mutation
c)
codon
d)
translation
27.
Thymine, adenine, guanine & cytosine
a)
codon
b)
mRNA
c)
tRNA
d)
nitrogen bases
28.
During the process of transcription, DNA serves as the template for making _, which leaves the nucleus and travels to the ribosomes.
a)
tRNA
b)
rRNA
c)
mRNA
d)
DNA
29.
The process by which DNA makes a copy of itself
a)
replication
b)
translation
c)
transcription
d)
mRNA
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