Four of the five choices listed below are steps in the
process of transcription. Select the exception.
a. cap put on one end
b. introns snipped out
c. action by DNA polymerase
d. poly-A tail placed on one end
e. exons spliced together
Answer: c
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Ionizing radiation does NOT include
A) gamma rays. B) UV rays. C) X-rays. D) cosmic rays.
The process in which NH4
+ is oxidized to NO3 ? is called
a. nitrification. b. ammonification. c. nitrogen cycling. d. nitrogen fixation. e. nitrogen assimilation.
In contrast with euchromatin, heterochromatin contains more genes and is earlier replicating
Indicate whether the statement is true or false
Seeds are superior reproductive structures, compared to spores. Describe the advantages of seeds. Briefly describe the
connection between human civilization and seeds. What will be an ideal response?