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Chapter 8: Q2CP (page 221)

Why is it hard to precisely define genes?

Short Answer

Expert verified

The basic unit of heredity is a gene that is made up of DNA.

Step by step solution

01

Gene

Gene is a relatively loose term that refers to sequences that encode a polypeptide as well as those that correspond to the sequences of rRNA and other RNA

02

Properties of gene

DNA and RNA operations are governed by genes.

The most vital substances in the human body are proteins, which serve as the basis for skin, muscle, and connective tissue and play a role in enzyme synthesis.

03

Reason for difficulty in defining genes precisely

A typical gene includes sequences that participate in initiating and terminating transcription and that are not transcribed. The expression of many genes depends on regulatory sequences that do not directly flank that coding region but may be located a considerable distance away.

That’s why it is hard to define genes precisely.

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