Both prokaryotic and eukaryotic cells use ________ to turn certain genes on or off.
A) RNA transcriptase
B) intron segments
C) proteins
D) nucleosome packing
Correct Answer:
Verified
Q2: The genes for the enzymes of glycolysis
A)are
Q5: The basis of cellular differentiation is
A)the operon.
B)selective
Q5: There is a mutation in the operator
Q6: Enhancers are
A) adjacent to the gene that
Q7: The expression of the tryptophan operon is
Q8: The relationship between DNA and chromosomes is
Q9: Which of the following is likely to
Q10: The coding regions of a gene are
Q19: RNA splicing involves the
A) addition of a
Q20: A single cell, the zygote, can develop
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