The primary transcripts in eukaryotes are most accurately described as
A. a faithful copy of the entire gene including exons and introns.
B. an exact copy of the gene, but the introns have been removed.
C. an RNA copy, but the noncoding exons and introns have been removed.
D. having the exons removed and the introns retained for translation.
E. composed of RNA polymerase and associated histones.
Answer: A
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Dynamic instability is the rapid growth and shrinkage of:
A. microfilaments. B. intermediate filaments. C. microtubules. D. Answers a and c are correct.
Mutations in structural genes account for almost all of the differences that we observe among different species
A. true B. false
In which ponds did male guppies have the highest mean number of spots?
a. ponds with no predators b. ponds with cichlids only c. ponds with killifish only d. ponds with cichlids and killifish
Relatively large parasites, such as viruses, bacteria, and protozoans, are referred to as ________
Fill in the blank(s) with correct word