Re: linear genes

Peter Bentley (
Tue, 10 Jun 1997 11:26:54 +0100

Date: Tue, 10 Jun 1997 11:26:54 +0100
From: Peter Bentley <>
Subject: Re: linear genes

Mark_M_Mills wrote:
> I have read in a couple of places that 'genes' are not identifiable units
> along a chromosome. In various processes different parts of the chromosome
> are used and in this manner one section of code may find itself being used
> different ways in several different processes. Thus, sematic codes
> existing like beads along the chromosome is a somewhat misleading image,
> though popular.
> This is concept is used to explain the difficulty genetic engineers face in
> splicing only a single 'feature' into a host organism. Instead of
> inserting a single desirable feature, the engineer must insert fairly large
> chunks of code with a multitude of carried features.
> Am I missing something?

As I understand it, you have it exactly right. Genes can overlap each
on the chromosome and often perform many different functions at
stages of the embryology of the individual.

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