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S1 Review: DNA
Test Description: S1 Review: DNA
Instructions: Answer all questions to get your test result.
1) Which of the following would represent the strand of DNA from which the mRNA strand CUCAAGUGCUUC was made?
A
GAGUUCACGAAG
B
CUCAAGUGCUUC
C
GAGTTCACGAAG
D
AGACCTGTAGGA
2) ATTG : TAAC ::
A
GTCC : CAGG
B
TCGG : AGAT
C
CGAA : TGCG
D
AAAT : TTTG
3) A change in a gene due to damage or being copied incorrectly is called
A
evolution.
B
meiosis.
C
a mutation.
D
segregation.
4) The enzymes responsible for adding nucleotides to the exposed DNA template bases are
A
replicases.
B
DNA polymerases.
C
helicases.
D
nucleotidases.
5) Genetically modified foods have a variety of benefits, such as
A
gene transfer.
B
allergic reactions.
C
insect resistance.
D
decreased antibiotic efficacy.
6) Which process produces a chain of amino acids?
A
replication
B
transcription
C
translation
D
meiosis
7) How many bases make up a codon?
A
6
B
9
C
3
D
2
8) Which process produces two identical copies of DNA?
A
transcription
B
replication
C
diffusion
D
translation
9) Which process results in the formation of an mRNA molecule?
A
translation
B
mitosis
C
transcription
D
replication
10) Which of the following best describes the relationship between mRNA and tRNA?
A
tRNA provides nitrogenous bases for mRNA.
B
mRNA delivers amino acids to tRNA.
C
tRNA translates the genetic code from mRNA.
D
mRNA uses proteins to build tRNA molecules.
*select an answer for all questions
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