UAA represents:
Correct answer: C. Both (A) and (B)
- A. Non-sense codon
- B. Stop codon
- C. Both (A) and (B)
- D. Promoters
Explanation
Non-sense codons, also known as stop codons, are specific sequences of three nucleotides (in DNA or mRNA) that signal the termination of protein synthesis during translation. When a ribosome encounters a non-sense codon (such as UAA), it does not correspond to any amino acid, but instead signals the end of the polypeptide chain being synthesized.
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About Chromosomes
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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