Explain how selecting heritable variation changes populations and use real selective-breeding examples as evidence for evolution.
Cell biologists play an important role in research into disease, fertility, evolution and many other areas of science.
Outline the evidence for evolution provided by selective breeding.
a. crop plants/domesticated animals/livestock produced by selective breeding
b. specific example of a domesticated animal/crop plant and the wild species from which it was developed
OR
specific example of a domesticated animal/crop plant and the features in it which have been improved «compared with the wild species»
c. artificial selection/crossing selected varieties/eliminating undesirable varieties
d. «selective breeding/artificial selection can cause» significant/rapid change over time/from the original wild species
e. «changes due to selective breeding/artificial selection» shows natural selection can cause change/evolution «in a species»
For example dogs have been developed from wolves