Microevolution refers to changes that occur within a single species or group or organisms. Microevolution, as opposed to macroevolution, occurs in a short period of time. In microevolution, the ancestor and the descendant obviously belong to the same type. For example, certain pests have evolved in such a way that they become immune to pesticides; the same thing has happened to certain weeds and herbicides. Hope this helps.
Microevolution
is the changes in allele frequencies that occur over time within a
population. This change is due to four different processes which are
presented below:
The
five agents of microevolution are:
Mutations
Gene
Flow
Genetic
Drift
Sexual
Selection
Natural
Selection
The
correct answer choice is: A) It is a change in allele frequency
within a population.
Chromosomes are made up of DNA(deoxyribosenucleicacid) which is a protein complex called chromatin that is organized into subunits called nucleosomes. The way in which eukaryotes compact and arrange their chromatin also helps regulate gene expression.
