NURSING ANM AND GNM

Detailed explanation-1: -Answer and Explanation: The correct answers are (b) and (d). The nucleic acids consist of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The genetic constitution (DNA) determines the type of organism.

Detailed explanation-2: -Nucleic acids are composed of building blocks called nucleotides, which consist of one pentose sugar, a nitrogenous base, and a phosphate group. Amino acids are the building blocks of proteins and enzymes, not nucleic acids.

Detailed explanation-3: -Ribosomal RNA (rRNA) and transfer RNA (tRNA) Transfer RNAs (tRNAs) are also involved in protein synthesis, but their job is to act as carriers – to bring amino acids to the ribosome, ensuring that the amino acid added to the chain is the one specified by the mRNA.

Detailed explanation-4: -Nucleic acids are made of nitrogen-containing bases, phosphate groups, and sugar molecules. Each type of nucleic acid has a distinctive structure and plays a different role in our cells.

Detailed explanation-5: -Of the 64 possible codons, 61 encode amino acids. The three remaining codons: UAA, UAG and UGA do not code for an amino acid, they are sometimes called nonsense codons. They are stop codons; when the ribosome encounters these protein synthesis stops.