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Unit Test — Unit test Answers

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21
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The diagram shows one step in the process of protein synthesis.Which step is shown?

Question illustration
A
transpiration
B
translocation
C
transcription
D
translation
22
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Why can uracil be used as a “clue” to identify RNA in a strand?

A
Because uracil is found in both DNA and RNA.
B
Because uracil indicates a damaged DNA strand.
C
Because uracil is always paired with thymine.
D
Because uracil is unique to RNA.
23

Which is considered a chemical mutagen?

A
tanning beds
B
tobacco
C
X-rays
D
sunlight
24

Which describes the function of a peptide bond?'

A
It connects amino acids.
B
It connects ribosomes.
C
It connects tRNA.
D
It connects anticodons.
25

Which organelle is the location where mRNA is translated into a protein?

A
nucleus
B
ribosomes
C
cytoplasm
D
cell membrane

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Unit Test — Unit test Answers — Biology A