Biology 2009 JAMB Past Questions - Question 39: The uniqueness of an individual organism in a population is accounted for by

Correct Answer

D

Explanation

Mutation is a sudden change ormore chromosomes for instance, an organism may lack a particular :, chromosome or possessan extra chromosome or may have a part of thechromosome cut off or turned into awrong way to lost completely. It may also involve an alteration inthe position of genes. Any of thesechanges could lead to the production ofoffspring markeddifferences in appearance from others that is, variation occurs. when these marked differences or variations accumulate in an organism for a longtime, evolution of a new species occurs. Thus mutation leads to variation which in turn leads to evolution.