(a) A pollen grain containing the two sperm cells. It produces a pollen tube, which arrives at the ovule. After the arrival, one of the synergid cells degenerates and the pollen tube bursts to ...

The protein RGS2 can delay an egg’s development into an embryo in order to allow time for sperm to arrive and merge with the egg in a healthy fertilization process. The embryo cannot survive without ...

When you seek the help of a fertility specialist to conceive, your first step is to undergo diagnostic tests to understand your likelihood of success. This is followed by a comprehensive consultation ...