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.
A case study of coevolution. Genetic drift. Genetic drift â along with natural selection, mutation, and migration â is one of the basic mechanisms of evolution. In each generation, some individuals may, just by chance, leave behind a few more descendents (and genes, of course!) than other individuals.
The modern genetic definition of biological evolution is A. change from one species to another by the natural selection of individual variation B. mutation causes variation and variation is selected for by the environment C. survival of the fittest D. a change in allele frequencies from one generation...iological evolution is defined as the change in allele frequencies (where alleles are versions of the same gene that differ in their base sequence) within populations (Freeman and Heron, 2004) http://www.calstatela.edu/faculty/pnargu...