The value of Q is 0.44 if 20 organisms of 100 organisms are green.
Explanation:
Data given:
alleles for the color of eyes of fly:
blue allele = dominant represented by P
green allele = recessive, represented by Q
total number of organism = 100
number of recessive trait organism,
= 20
Q =?
The allele frequency of the green eye is calculated as:

= 
= 0.2
q = 
q = 0.44
0.44 is the frequency of Q allele in the population.
Q is the homozygous recessive alleles in the population and its value is 0.44.
Scientists who use principles to develop new technology work in the field of applied science
Centromeres split apart during anaphase.
spindle fibers pull the to sister chromatids apart.
Gene pool is the variety and available genes in a specific population of a species .
Answer:
Umm, its supposed to be Species - Population - Community.
Explanation:
A population can be a bunch of species, a community can be a bunch of populations.