Question

In a flowering plant, the male part of the flower (the stamen) produces haploid microspores that divide by ________ to produce sperm. A pollen grain that lands on a stigma grows a pollen tube to deliver __ (how many?) sperm to the ovary. Fusion of a sperm with an egg produces a __ n cell called a ________To provide food for the developing embryo, a tissue called endosperm is produced through double fertilization. Endosperm has a ploidy of ___ n.

Answer 1

The male part of a flowering plant produces sperm through meiosis. Pollen grains deliver two sperm to the ovary, and fusion of sperm with an egg produces a diploid zygote. Endosperm, which provides food for the developing embryo, has a triploid ploidy.

Step-by-step explanation:

In a flowering plant, the male part of the flower (the stamen) produces haploid microspores that divide by meiosis to produce sperm. A pollen grain that lands on a stigma grows a pollen tube to deliver two sperm to the ovary. Fusion of a sperm with an egg produces a 2n cell called a zygote. To provide food for the developing embryo, a tissue called endosperm is produced through double fertilization. Endosperm has a ploidy of 3n.

A pollen grain that lands on a stigma grows a pollen tube to deliver two sperm to the ovary. Fusion of a sperm with an egg produces a 2n cell called a zygote. To provide food for the developing embryo, a tissue called endosperm is produced through double fertilization. Endosperm has a ploidy of 3n.