JoPais912
Answered

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White spotting, or piebald trait, characterized by an absence of hair pigment in specific places, is caused by mutant copies of a A) carbohydrate. B) gene. C) lipid. D) steroid

Sagot :

I would say gene, because traits are determined by gene
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The right answer is B) gene.

A gene, in genetics, is a basic unit of heredity which in principle predetermines a specific trait of the form of a living organism, as defined in 1909 by Wilhelm Johannsen. From the physical point of view, a gene is a fragment of the determined locus of a DNA sequence.

A gene "parameter" the synthesis of a given RNA, by predefining its structure and, therefore, that of the possible protein or possible polypeptide synthesized from this RNA: this is what molecular biology studies .

These two aspects of the notion of gene are supposed to correspond, one at the physical and molecular level, the other at the level of principle and heredity.

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