Explain the divisions that occur in the zygote.

Explain the changes that occurs in the uterus simultaneously in anticipation.

The following is the illustration of the sequence of ovarian events (a-i) in a human female. Explain the changes that occurs in the uterus simultaneously in anticipation.

Meiosis is a type of cell division where the chromosomal number is reduced to half the number in daughter cells. Which type of cell division occurs in the drones to produces sperm?

Mitosis cell division occurs during

In animals meiotic division occurs during gamete formation. This gametic meiosis results in

Discuss with your teacher about (i) haploid insects and lower plants where cell-division occurs, and (ii) some haploid cells in higher plants where cell-division does not occur.

Differentiate between microsporogenesis and megasporogenesis . Which type of cell division occurs during these events ? Name the structures formed at the end of these two events .