Normally,the number of chromosomes in the nuclei of gametes that fuse at fertilization are

Which types of cells undergo meiosis in a flower?

Choose the correct option from the following statements.
$I$. During embryogenesis,the zygote undergoes mitotic cell division.
$II$. In organisms with a diplontic life cycle,the zygote divides by meiotic cell division.
$III$. The pericarp (fruit wall) develops from the ovary wall after fertilization.
$IV$. In brinjal,sepals remain attached to the fruit even after fertilization.

Dioecious plant $- P$
Monoecious plant $- Q$
Select the correct option for $P$ and $Q$.
$\quad\quad\quad P\quad\quad Q$

In multicellular organisms, life begins with a .......... .

Identify the wrong statements.