Sexual Reproduction In Stamen Flashcards
What is the stamen?
The male sexual reproductive system
What is the first step in the stamen?
the diploid microsporocytes ungo meiosis
What’s the second step in the stamen?
After meiosis, 4 haploid MICROSPORES are produced
They are haploid
What’s the third step in the stamen?
Each microspore undergoes mitosis to produce pollen
the pollen has two haploid nuclei
What is the 4th step in the stamen?
The tube nucleus directs the growth of a pollen tube
What is the 5th step in the stamen?
the nucleus divides mitotically to produce two sperm cells
How the first the sperm cell fertilize?
The two sperm cells of a pollen grain enter the embryo sac.
The first sperm cell fertilizes the egg cell.
How does the second sperm cell fertilize?
It fuses with the binucleate cell to form triploid endosperm (3n)
