What happens during prophase 1 synthesis and prohase 2 of interphase?

Answer 1

DNA replication takes place during the synthesis phase of the cell cycle. The cell also forms a second centrosomeduring this phase.

The synthesis phase is often written as S phase. It occurs after the first growth (G1) phase, and therefore about midway through interphase.

At the start of the S phase, each chromosome has only one DNA molecule, but by the end of the S phase each has two, which, barring copying errors, are genetically identical, i.e. they have identical base sequences.

The doubling of the DNA and the centrosome constitute preparations for a subsequent cell division (mitosis or meiosis). A cell that is not due to divide will not go through an S phase.
During the synthesis stage of the cell cycle, a cell makes (replicates its own) DNA.

Answer 2

Chromatin in the nucleus condenses to form chromosomes. The pairs of centrioles move to opposite sides of the nulceus. Spindle fibers form a bridge between the ends of the cell. the Nuclear envelope breaks down.

Answer 3

During prophase the chromosomes condense as pairs of sister chromatids, the nuclear membrane disappears, and the mitotic spindle forms. During prometaphase, the kinetochores form on the centromeres of the pairs of sister chromatids, and the microtubules attach to the kinetochores and move the chromosomes to the center of the cell.

Answer 4

The nuclear membrane disintegrates and the chromatin condenses into chromosomes.

Answer 5

it prepares the cell to divide