What does the product of sexual reproduction generally generate?

Which of the following cells of the embryo sac degenerate after fertilisation in angiosperms?

In the figure given below,the plant bears two different types of flowers marked '$A$' and '$B$'. Identify the types of flowers and state the type of pollination that will occur in them.

Which of the following pairs of plant parts are both haploid?

What is meant by $Totipotency$?

Match the following columns regarding the chromosome number in meiocytes $(2n)$ of different organisms:
| Column-$I$ (Organism) | Column-$II$ (Chromosome number in meiocyte) |
| :--- | :--- |
| $p$. Ophioglossum | $v$. $20$ |
| $q$. Apple | $w$. $34$ |
| $r$. Rice | $x$. $24$ |
| $s$. Maize | $y$. $42$ |
| | $z$. $1260$ |