In pre-mRNA processing, ____
a. exons are spliced out and used to produce ribosomal subunits
b. introns are spliced out and combined to form complete proteins
c. introns are spliced out and combined in the tRNA
d. exons are spliced out and the introns are combined in the mature mRNA
e. introns are spliced out and the exons are combined in the mature mRNA
Ans: e. introns are spliced out and the exons are combined in the mature mRNA
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Electrons farthest from the nucleus have the ____________
A. least potential energy B. most kinetic energy C. least kinetic energy D. most potential energy E. same amount of energy as electrons closest to the nucleus
Cyanobacteria obtain energy through ________
Fill in the blank(s) with correct word
Plants are multicellular prokaryotes.
True or False?
Which of the following statements about RNA processing in eukaryotes is INCORRECT?
A. A 7-methylguanosine cap is added on to the 5?end of the mRNA. B. Modification occurs in the nucleus. C. The excision of introns from pre-mRNA is the only modification required to produce a mature mRNA. D. A poly A tail is added on to the 3? end of the mRNA. E. A protein/RNA complex is used to remove introns from the pre-mRNA.