Mammalian Alu elements are likely derived from

a. retroviruses.
b. regions of tndemly repeated sequences.
c. 7SL RNA transcripts.
d. introns transposed from functional genes.
e. reverse-transcribed mRNAs.


Ans: c

Biology & Microbiology

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Which term BEST describes populations of trees, insects, mammals, fungi, bacteria, and many other organisms that interact in any location? 

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Biology & Microbiology

Please select characteristics exhibited by prokaryotes to test your understanding of the differences between prokaryotic and eukaryotic organisms.

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Biology & Microbiology