1. Passage of a sperm through the corona radiata of the oocyte.
2. Penetration of the zona pellucida.
3.Fusion of the plasma cell membranes of the oocyte and sperm. after fusion the sperm head and tail enters the oocyte but plasma membrane of sperm doesn't.
4. Completion of the second meiotic division of the oocyte. this creates female pronucleus and polar body 2.
5. Formation of the male pronucleus (nucleus of sperm enlarges)
6. Breakdown of the pronuclear membranes and restoration of diploid number of chromosomes.
Answer:
1. is correct
Explanation-
If the slope increase that means more topsoil or land was added to the previous:)
Answer:
Interphase
Explanation:
Before dividing, the cell must go through interphase. There are three parts of interphase : G1 where the cell grows, S where DNA is copied, and G2 where the cell prepares for division. Interphase is the longest phase because the cell needs to grow.
Before mitosis, interphase happens and interphase also happens before meiosis I. it does not happen before mitosis II though
Answer:
the answer is Y
Explanation:
why? because it's right on edge.
