Which of the following statements about tRNA molecules is false?

A. The enzyme that attaches an amino acid to a tRNA is aminoacyl-tRNA synthetase

B. Although composed of a single strand of RNA, each molecule contains several sho, double-helical regions

C. The amino acid attachment is always to 3' end of the molecule.

D. There is at least one tRNA for each of the 2 amino acids

Correct Answer: There is at least one tRNA for each of the 2 amino acids

Description: Answer-D. There is at least one tRNA for each of the 2 amino acids* There is at least one tRNA for each of the 2 amino acids RNA which transfer amino acid from the cytoplasm to the ribosomal protein synthesizing machinery* Clover leaf shape in the secondary structure.* L-shaped teiary structure, Single tRNA contains 74-95 nucleotides.* Cytoplasmic translation system Possess 31 tRNA species* Mitochondrial system Possess 22 tRNAs'Contain significant propoion of nucleosides with unusual bases.* Dihydro uridine (contain Dihydrouracil)* Pseudouridine* Inosine (contain Hypoxanthine)* Ribothymidine

Category: Biochemistry

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