BIOMOLECULES AND ENZYMES

BIOLOGY

PROTEINS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
rRNA is ____
A
a form of RNA that carries the instructions for making a protein from a gene and delivers it to the site of translation.
B
single strands of RNA that temporarily carry a specific amino acid on one end.
C
molecules that are part of the structure of ribosomes
D
None of the above
Explanation: 

Detailed explanation-1: -Within the ribosome, the rRNA molecules direct the catalytic steps of protein synthesis-the stitching together of amino acids to make a protein molecule. In fact, rRNA is sometimes called a ribozyme or catalytic RNA to reflect this function.

Detailed explanation-2: -Every cell has a 16S rRNA gene as the ribosomal RNA (rRNA) is an integral part of the ribosome, which is responsible for making cellular proteins. This gene is only about 1550 bp in length in prokaryotes and every cell has from one to more than 25 copies of this gene.

Detailed explanation-3: -Ribosomal RNA (rRNA) molecules are the structural components of the ribosome. The rRNAs form extensive secondary structures and play an active role in recognizing conserved portions of mRNAs and tRNAs. They also assist with the catalysis of protein synthesis.

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