An anticodon is the sequence of the nitrogenous bases on the:
Correct answer: C. tRNA molecule which recognizes the appropriate sequence of bases on the mRNA
- A. Complementary strand of mRNA which codes for one amino acid
- B. tRNA molecule where the amino acid is attached
- C. tRNA molecule which recognizes the appropriate sequence of bases on the mRNA
- D. mRNA molecule which instructs the ribosomes to initiate
Explanation
The correct answer is Option D. An anticodon is a sequence of three nucleotides on a tRNA molecule that recognizes and pairs with a complementary codon on an mRNA molecule. This pairing is crucial for the translation process, ensuring that the correct amino acid is added to the growing polypeptide chain. Option A is incorrect because DNA does not contain anticodons. Option B is incorrect as anticodons are not found on mRNA. Option C is misleading because while tRNA is where the amino acid is attached, the anticodon itself is responsible for recognizing codons on mRNA, not for amino acid attachment. Option E is incorrect because the mRNA's start codon, not the anticodon, initiates protein synthesis.
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Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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