Best Answer: centerioles (or centrosomes--some books now call centrioles centrosomes but some books say only animal cells have centerioles) 2. centrosomes are found in plant cells 3.The interphase is a preparatory phase and during this the-nucleus and cytoplasm remain metabolically and synthetically active. The duplication of chromosomal DNA molecules takes place during the S phase of interphase.
Evolution is the process by which modern organisms have descended from ancient ancestors.
Genetic drift is a change in gene frequency within a population due to chance instead of natural selection. If the population is small, then there can be considerable genetic drift, which can change the gene frequency quite drastically. Think of the genetic variation of a population as a bowl of jelly beans with all sorts of colors, representing healthy genetic variation.