AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

STRUCTURE OF NUCLEIC ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The primary structure of a protein
A
the sequence of amino acids
B
interactions between polypeptides
C
only hydrogen bonds between R groups
D
disulfide bridges, ionic bonds, or other interactions between R-groups
Explanation: 

Detailed explanation-1: -To reiterate, the primary structure of a protein is defined as the sequence of amino acids linked together to form a polypeptide chain. Each amino acid is linked to the next amino acid through peptide bonds created during the protein biosynthesis process.

Detailed explanation-2: -The linear sequence of amino acids within a protein is considered the primary structure of the protein. Proteins are built from a set of only twenty amino acids, each of which has a unique side chain. The side chains of amino acids have different chemistries. The largest group of amino acids have nonpolar side chains.

Detailed explanation-3: -A protein’s shape is determined by its primary structure (the amino acid sequence). The amino acid sequence within a protein is determined by the encoding sequence of nucleotides in the gene (DNA).

Detailed explanation-4: -EXPLANATION: Sequence of amino acid is represented by protein primary structure. The primary structure of a protein is reported starting from the amino-terminal end to the carboxyl-terminal end. The biosynthesis of protein is mostly performed by ribosomes in the cells.

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