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Unit Test — Unit test Answers

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According to Chargaff's rule, base pairing in DNA should resemble which of the following?

A
A = T; C = G
B
A = C; T = G
C
A = G; T = U
D
A = U; C = G
22
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Which summary below correctly describes what occurs during transcription?

A
A DNA template is used to create an mRNA strand.
B
An mRNA template is used to create a DNA strand.
C
A DNA template is used to create a ribosome.
D
An mRNA template is used to create a tRNA strand.
23

A mutagen is

A
a living thing that has undergone a mutation.
B
an agent that causes a mutation in DNA.
C
a mutation that has affected one gene.
D
any chemical that can poison living cells.
24

Which is considered a chemical mutagen?

A
tanning beds
B
tobacco
C
X-rays
D
sunlight
25

In 1953, who developed the model that is shown below?

Question illustration
A
James Watson and Francis Crick
B
Marshall Nirenberg and Heinrich Matthaei
C
Rosalind Franklin
D
Erwin Chargaff

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