Are all cells produced through meiosis identical in their genetic material? Why or why not? Why is it so important for sex cells to undergo meiosis prior to fertilization? Why does each cell have 2 copies of each gene? Is it because when the cell divides, it copies the nucleus and the genes presen...
Why is it so important for sex cells to undergo meiosis prior to fertilization? Why do chromosomes need to go outside the nucleus during cell division? Why does a chromosome appear during cell division? A normal human has 23 pairs of chromosomes, or 46 chromos...
Fertilization needs to occur approximately within 12-24 hours of the egg being released, otherwise, the egg becomes no longer viable. Fertilization occurs when a sperm penetrates the cell walls of the egg called the corona radiata ...
Why does cell division occur? Why is mitotic cell division important? Meiosis is a reductive type of cell division, it results in cells with fewer chromosomes. Why? Why must the DNA be duplicated before cell division? Why is it important in cell division for chromosomes to be transmitted unch...
Meiosis in the reproductive organs of plants leads to the production of haploid male and female gametophytes, i.e., pollen grains in the anthers and egg cells in the ovules. During fertilization and following the attachment of the male gametophyte to the stigma, a pollen tube elongates ...