AP BIOLOGY

Detailed explanation-1: -If your were to examine a sample of 1000 cells, in which of the phases listed below would you expect to find most of the cells? Explanation: Most cells spend about 90% of their life cycle in interphase. Therefore, if you were to examine a random sample of cells, most of them would be found to be in interphase.

Detailed explanation-2: -When you look into the microscope, which phase of the cell cycle do you think most cells will be in –interphase, mitosis, or cytokinesis? Why? Most cells will be in interphase.

Detailed explanation-3: -The M phase is also known as mitosis and it is the time when the cell is ready to divide. At this stage the cell has successfully synthesized proteins and replicated its DNA also. So, no growth and synthesis is not priorities.

Detailed explanation-4: -G1 phase. The G1 phase, gap 1 phase, or growth 1 phase, is the first of four phases of the cell cycle that takes place in eukaryotic cell division. In this part of interphase, the cell synthesizes mRNA and proteins in preparation for subsequent steps leading to mitosis.

Detailed explanation-5: -In G1, cells accomplish most of their growth; they get bigger in size and make proteins and organelles needed for normal functions of DNA synthesis. Here, proteins and RNAs are synthesized, and, more especially the centromere and the other components of the centrosomes are made.