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Molecular Genetics
Test Description: Kolten created this.
Instructions: Answer all questions to get your test result.
1) During the transcription step of protein synthesis the enzyme_________ unzips DNA
A
DNA ligase
B
DNA polymerase
C
DNA nucleobase
D
DNA fantastic
2) How many amino acids would be on a protein chain that was made by a gene with 30 nitrogenous bases?
A
10
B
3
C
90
D
30
3) The stop codon is always last what would happen if a framshift occured?
A
A new version of a stop codon is added next
B
It restarts
C
The strand of amino acids would continue until it reaches next stop codon
D
The chain breaks
4) What links amino acids?
A
fatty acid bonds
B
glue
C
hydrogen bonds
D
peptide bonds
5) When AAA CGU UUA is changed to AAA CCU UUA what occurs?
A
Deletion
B
Substitution
C
Frameshift
D
Insertion
6) When there is a framshift there is _________ or _________ of a base.
A
Deletion, substitution
B
addition, insertion
C
insertion, deletion
D
substitution, addition
7) Which is not a DNA nitrogenous base?
A
Guanine
B
Thyamine
C
Uracil
D
Cytosine
8) DNA and RNA are both ________.
A
all of the above
B
molecules
C
chemicals
D
nucleic acids
9) Which of the following RN base sequences is complementary to the DNA sequence AAA TTT CCC GGG
A
AAA TTT CCC GGG
B
UUU AAA CCC GGG
C
UUU AAA GGG CCC
D
TTT AAA GGG CCC
10) Order the components of nucleic acids from smallest to largest.
A
codon, gene, chromosome, nitrogenous base, genome
B
nitrogenous base, codon, gene, chromosome, genome
C
nitrogenous base, codon, chromosome, gene, genome
D
genome, chromosome, gene, codon, nitrogenous base
*select an answer for all questions
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