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WorksheetsMolecular genetics review
Total questions: 15
Worksheet time: 15mins
Name
Class
Date
1.
If one strand of DNA has the sequence TTACCG, the sequence of the other strand of the same molecule will be
a)
AATGGC
b)
TTACCG
c)
AACGGC
d)
AATGGG
2.
Which of these bases does not exist in RNA?
a)
C
b)
T
c)
U
d)
A
3.
Where does transcription take place?
a)
nucleus
b)
ribosome
c)
cytoplasm
d)
smooth ER
4.
Which RNA bases would pair with TACGAA in transcription?
a)
AUGCUU
b)
ATGCTT
c)
GCATCC
d)
GCAUCC
5.
A sequence of a DNA template strand is shown.
3' TCC AAT GGC TTA TTT 5'
Which of these is the correct amino acid chain produced from the DNA template strand?
a)
Arginine, Leucine, Proline, Asparagine
b)
Tryptophan, Phenylalanine, Leucine
c)
Serince, Leucine, Proline, Asparagine
d)
Tryptophan, Phenylalanine, Leucine, Glycine
6.
Every three letters (example: ATC) in DNA codes for what??
a)
Amino Acid
b)
Nucleotide
c)
Lipid
d)
Carbohydrate
7.
Which amino acid is made from the RNA codon UUA?
a)
Phenylalanine
b)
Leucine
c)
Serine
d)
Tyrosine
8.
Which amino acid is made from the RNA codon GUA?
a)
Phenylalanine
b)
Leucine
c)
Serine
d)
Valine
9.
What has DNA?
a)
animals
b)
plants
c)
bacteria
d)
all of the above
10.
How many bases are in one codon?
a)
1
b)
2
c)
3
d)
4
11.
What type of gene mutation has occurred here? Normal-
AGA-TTC-ATA-GCG
Mutant-
AGA-TTC-AAT-AGC-G
a)
deletion
b)
insertion
c)
substitution
d)
nonsense
12.
Where do mutations occur?
a)
DNA and RNA
b)
DNA
c)
RNA
d)
mRNA and tRNA
13.
What mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-A
T-G-A-C-C-A
T-G-A-G-C-A
a)
Substitution
b)
Deletion
c)
Insertion
d)
Frameshift
14.
DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
a)
Substitution
b)
Deletion
c)
Insertion
d)
Inversion
15.
Choose the correct order from the smallest to the largest.
a)
gene, DNA, chromosome, nucleus, cell
b)
chromosome, DNA, cell, nucleus, gene
c)
DNA, gene, chromosome, nucleus, cell
d)
cell, nucleus, chromosome, DNA, gene
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