A/An __________ can be defined as a sequence of bases in DNA that codes for the synthesis of one polypeptide.
A)codon
B)replicon
C)Okazaki fragment
D)gene
E)polyribosome

Question

Quizplus · Accepted Answer

A gene is a sequence of nucleotides in DNA that codes for a functional RNA molecule or a polypeptide chain. A polypeptide chain is made up of amino acids and is the building block of proteins. Each codon, which is a sequence of three nucleotides, codes for a specific amino acid during protein synthesis. Therefore, a gene provides the instructions for assembling a specific polypeptide chain by specifying the order of amino acids in a protein. Replicons refer to the units of DNA replication, Okazaki fragments are short fragments of DNA synthesized during the replication of the lagging strand, and polyribosomes are complexes of multiple ribosomes translating the same mRNA molecule simultaneously.

A/An __________ Can Be Defined as a Sequence of Bases