Genetic code:
Correct answer: C. mRNA
- A. tRNA
- B. Human cell
- C. mRNA
- D. Promotor sequence
Explanation
The genetic code is directly related to messenger RNA (mRNA) because mRNA serves as the intermediary molecule that carries the genetic information from the DNA to the ribosome during protein synthesis. The sequence of nucleotides on the mRNA molecule is transcribed from the DNA template and represents the genetic code. Each sequence of three nucleotides on the mRNA molecule, called a codon, corresponds to a specific amino acid or a start/stop signal, according to the rules of the genetic code. Thus, the genetic code dictates the sequence of codons on the mRNA, which in turn determines the sequence of amino acids in the resulting protein during translation. Therefore, mRNA acts as the messenger that faithfully transmits the genetic information encoded in the DNA to the ribosome, where it is translated into a functional protein according to the genetic code.
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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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