AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Ribosomal RNA is a form of RNA that
A
makes up a ribosome and catalyzes protein synthesis
B
carries amino acids to the ribosome
C
transfers the genetic code to the nucleus
D
copies the genetic code from DNA
Explanation: 

Detailed explanation-1: -Ribosomal RNA (rRNA) is a type of stable RNA that is a major constituent of ribosomes. It ensures the proper alignment of the mRNA and the ribosomes during protein synthesis and catalyzes the formation of the peptide bonds between two aligned amino acids during protein synthesis.

Detailed explanation-2: -Although optimized for reliable base pairing, RNA is also able to catalyze essential biochemical reactions, including RNA processing and protein synthesis.

Detailed explanation-3: -Ribosomal RNA in the larger subunit catalyzes the reaction that forms a peptide bond between the amino acid in the A site and the growing polypeptide chain in the P site.

Detailed explanation-4: -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-5: -Ribosomes: Where the translation happens. Translation takes place inside structures called ribosomes, which are made of RNA and protein. Ribosomes organize translation and catalyze the reaction that joins amino acids to make a protein chain.

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