The diagram shows a complex formed during translation of proteins.The CORRECT identification of parts X, Y and Z is
Correct answer: A. A
- A. A
- B. B
- C. C
- D. D
Explanation
Option A correctly identifies X as amino acid, Y as tRNA and Z as mRNA. X (Amino Acid): The building blocks of proteins. The codon AUG is the start codon and codes for the amino acid Methionine (Met), which is the first amino acid in most newly synthesized polypeptides. Y (tRNA): Transfer RNA acts as an adapter, physically linking the codon on the mRNA to its corresponding amino acid. It has an anticodon sequence (UAC) that is complementary to the mRNA codon (AUG). Z (mRNA): Messenger RNA carries the genetic code from the DNA in the nucleus to the ribosomes in the cytoplasm, where protein synthesis occurs. The code is read in three-base sequences called codons (like AUG). Hence all other options are wrong
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About Ribonucleic Acid (RNA)
Ribonucleic acid is generally a single-stranded nucleic acid containing ribose and uracil instead of thymine. Coverage includes mRNA, tRNA and rRNA, complementary base pairing, transcription and translation, and the differences between RNA and DNA in structure, location and biological function.
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