What happens to the tune nucleus after the pollen tube has penetrated the ovule?

Upon reaching the ovule the pollen tube ruptures, thereby delivering the sperm cells to the female gametophyte, ultimately resulting in a double fertilization event. The first fertilization event produces a diploid zygote and the second fertilization event produces a triploid endosperm.

hi~~

i would say that hybridization occurs frequently in nature, because there are many types of hybrids that have occurred naturally, such as the mule (male donkey + female horse)

the contamination

we are putting to many trash.