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which of the following becomes covalently attached to tRNA during protein synthesis?
a) amino acid
b) eIF3
c)mRNA
d) 30s ribosomal unit
e)50s ribos unit

e..

Confused between A and E

d or e

a...........

ok..........looks a bit confusing
During protein synthesis, a ribosome moves along an mRNA chain, ... and covalently links it to a cognate tRNA, forming an aminoacyl-tRNA

looks like d

sorry e
50s larger subunit

I think it's e 2...but draashna, what is the answer..tnks

I think its A....AA is attached covalently to 3' end of tRNA by aminoacyl tRNA synthetase...lippincotts biochem review pg 433