Different positions of i

Ng Hian Cheong medp3019 at leonis.nus.sg
Thu Feb 23 05:32:27 EST 1995


Dear colleague,
  Is it possible for descendents of the same ancestral gene to 
have different numbers and postions of their introns in different
species of organisms ?
 I have cloned a gene (from a protozoa) which is 
homologous to all members of a particular family of 

protein kinase. Most members of this family documented in databases are 
from plants. These genes displayed 10 introns where genomic sequences are 
available and the positions of their introns are conserved.
  Assuming my gene originated from the same ancestral gene as those with 
10 introns, what is the explaination for the observed differences?

Your fellowmen in Science
Ng Hian Cheong



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