evolution.

Question

The most basic definition of evolution is change in ____________ within a population over time.
A. telomeres
B. allele frequency
C. chromosome number
D. the number of individuals

Answer 1

It is allele frequency or gene frequency that comes under evolutionary pressure, the most beneficial trait is selected and the trait that has relatively little use in constantly changing environment is phased out or is consistently reduced.

 

Chromosome number remain same during evolution and number of individuals fluctuate within a range, it  may alter significantly under severe climatic conditions such as drought, flood, earthquakes etc.