Mature cardiac cells remain metabolically active but do not proliferate. this type of arrest is known as the

Mature cardiac cells remain metabolically active but do not proliferate. this type of arrest is known as the G o phase.

The stages of a cell cycle is divided into four phases namely the G1 phase, S phase (synthesis), G2 phase (interphase) and M phase (mitosis or meiosis). But the cells that have stopped dividing are said to have entered a phase of quiescence called the G o phase.

G o phase refers to a non-dividing cellular phase outside the replicative cell cycle. The cells in this stage remain metabolically active but do not divide and increase in their number. G o phase irreversible in the differentiated cells of bone, cardiac muscle and nerve. The cardiomyocytes or the heart muscle cells simply increase in size as the heart goes larger.

Thus, the mature or differentiated cardiac cells remain metabolically active but do not divide and get arrested in the G o phase of cell division.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.

lesson summarykaryotypes a genome is the full set of all the genetic information that an organism carries in its dna. chromosomes arebundles of dna and protein found in the nucleus of a eukaryotic cell.