Ribozymes are:
a. capable of replicating RNA. c. capable of copying RNA into DNA.
b. proteins. d. RNA enzymes.
D
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A student clones a DNA insert into the SalI site of pBR322 . Select all answers that describe the media on which she could expect growth of E. coli containing the recombinant plasmid
A. nutrient agar with ampicillin B. nutrient agar with tetracyline C. nutrient agar with ampicillin and tetracycline D. nutrient agar with streptomycin E. nutrient agar with no antibiotics
Which structure will form the outer layer of a bone? a. Yellow marrow b. Compact bone c. None of these choices
d. Spongy bone e. Red marrow
The most abundant gas in the atmosphere is oxygen
____________________ Indicate whether the statement is true or false.
Which molecule consists entirely of protein?
a. ribosomal large subunit b. peptidyl transferase c. aminoacyl-tRNA synthetase d. ribosomal small subunit