NEET BIOLOGY

Detailed explanation-1: -Cell growth and production of new organelles and enzymes are characteristics of prophase. FALSE: Interphase is characterized by cell growth and production of new organelles and enzymes. It would take seven cell divisions for one original cell to produce 128 cells.

Detailed explanation-2: -So the main characteristics of the interphase cell are the following: Chromosomes remain diffused and extended, long and coiled. The nuclear membrane remains intact. DNA replication takes place so the amount of DNA and genes gets doubled.

Detailed explanation-3: -Prophase is characterized by condensation of sister chromatids-essentially packaging into a more compact chromatin structure. This process involves condensins I and II, which require phosphorylation by mitotic Cdks.

Detailed explanation-4: -During interphase, G1 involves cell growth and protein synthesis, the S phase involves DNA replication and the replication of the centrosome, and G2 involves further growth and protein synthesis.

Detailed explanation-5: -During the second gap phase, or G 2start subscript, 2, end subscript phase, the cell grows more, makes proteins and organelles, and begins to reorganize its contents in preparation for mitosis.