In RNA editing:
A. spliceosomes change the base sequence
of the primary transcript and therefore the
protein for which it codes.
B. different spliceosomes in different cells
create different RNA sequences from the
same primary transcript.
C. enzymes change the base sequence of
the primary transcript and therefore the
protein for which it codes.
D. different enzymes in different cells create
different primary RNA transcripts from the
same DNA sequence.
E. a combination of spliceosomes and
enzymes creates different primary RNA
transcripts from the same DNA sequence.
C
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Biological magnification is best defined as ____
a. the increase in toxicity of a chemical compound resulting from its metabolism by a living organism b. the higher relative proportion of biomass among producers as compared to consumers in an ecosystem c. the concentration of nondegradable poisons within organisms at higher trophic levels d. the concentration of degradable poisons within organisms at lower trophic levels e. the declining relative proportion of nondegradable poisons in organisms at higher trophic levels as compared to those at lower trophic levels
The genes in a chromosome code for proteins.
a. true b. false
Salmonella typhi
What will be an ideal response?
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