Generation N Generation N.
Generation N+2
Black and Grey Squirrel Population Evolution
Squirrel image from www. mnh. si. edu
If fur color (or coat color) in squirrels is carried on one
gene, and there are 2 alleles for fur color. These alleles
are black (g) which is recessive to the allele for grey
(G) which is dominant.
Explain what could have caused the changes to the
population as shown above?

Why was mendel's work not accepted at the time? o a. his results were false. o b. he did not repeat his experiments. o c. he did not have any data. o d. his results were surprising,

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.

What is the key to the recognition of codominance?