Principle of Inheritance and VariationHard
Question
Gene and cistron words are sometimes used synonymously because
Options
A.one cistron contains many genes
B.one gene contains many cistrons
C.one gene contains one cistron
D.one gene contains no cistron
Solution
Gene (Gr. genos = birth, race) is the basic unit of heredity. It is a sequence of nucleotides on a chromosome that encodes a polypeptide or RNA molecule and so determines the nature of individual’s inherited traits. Cistron is a segment of DNA that codes for one polypeptide. Cistron is generally accepted as a synonym for gene.
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