32.Somatic cells of a human have ____ chromosomes and are called ____A.10, haploidB.92, diploidC.23, haploidD.46, diploid33.In mitosis each chromosome consists of two identical ____________ called ______________.34.An animal has 40 chromosomes in its gametes, how many chromosomes would you expect to find in this animal's brain cells?
35.During which phase of mitosis is DNA replicated?36.How many cells will a somatic cell make after 4 cell divisionsA.4B.8C.16D.32E.6437.If there were 10 chromatids in a cell how many centromeres will there be? 38.If there are 20 centromeres in a cell at anaphase, how many chromosomes are there in each daughter cell following cytokinesis?39.Proteins that are involved in the regulation of the cell cycle, and that show fluctuations in concentration during the cell cycle, are called40.When a cell is in late anaphase of mitosis, which of the following will we see?A.a clear area in the center of the cellB.chromosomes clustered at the polesC.individual chromatids beginning to separate from one another D.chromosomes clustered tightly at the centerE.breaking down of the nuclear envelopeSHORT ANSWER SECTION41.What is cell cycle?42.What are the three periods into which interphase is divided? 43.Into which periods is mitosis divided?
44.What are centrioles? In which type of cell are they present?45.What are the main events of the first mitotic period?46.During mitotic anaphase is there separation of homologous chromosomes or separation of identical chromatids?47.What is the name of the cytoplasm division in the end of mitosis? What are the differences in this process between animal and plant cells?48.How does the quantity of genetic material vary within the cell during the sequential phases of the cell cycle?49.Can mitosis occur in haploid (n) cells? And in triploid cells?50.Explain why the parent cell and both daughter cells must have the same number of chromosomes.