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.
1 Mutations are changes in the DNA. A single mutation can have a large effect, but in many cases, evolutionary change is based on the accumulation of many mutations.  Gene flow is any movement of genes from one population to another and is an important source of genetic variation.