Bio 181 (Module 6: Self Check) correct answers

Bio 181 (Module 6: Self Check)Many chemotherapies drugs act by arresting the cell in M-phase of the cell cycle. - correct answer True The activation of both MPF and MAPK result in _________ _________ (two words) of the cytoplasm during M-phase. - correct answer Settling down Cytoplasmic signal transduction controls the checkpoints of the cell cycle. - correct answer True An important checkpoint regulator is at the Gap2/M-phase transition. Here cyclin B and Cdk1 activate and form MPF which becomes a _________ _________ (two words) and causes the DNA to condense into _________. - correct answer Histone Kinase Chromosomes The synthesis/presence of cyclin is what turns on the Cdk as the Cdk is always present but it is the cyclin that is synthesized and degraded in cycles. - correct answer True Cancer can be described as a loss of cell cycle regulation. - correct answer True After DNA synthesis (i.e., S-phase) an identical copy of the DNA has been made and this is present in the two chromatids when viewed as the chromosome. - correct answer True List the three categories of cells in the body with regard to the cell cycle. - correct answer 1) Cells that never go through the cell cycle again once you're born. (Ex: neurons, muscles) 2) Cells that can be induced to go through the cell cycle by injury. (Ex: Liver) 3) Cells that are constantly going through the cell cycle. (Ex: Skin, blood cells, intestine/Enterocytes)