Pollen extract stimulates the formation of fruit in the unpollinated carpel because the extract contains the following hormone:

The number of meiotic divisions required to produce $40$ seeds in $Capsella$ is:

The zygote develops into an embryo through $.......$ and the primary endosperm cell develops into endosperm tissue through $.......$.

Which of the following pairs of structures in plants possess a haploid number of chromosomes?

Animals that give birth to young ones are known as:

Identify the haploid and diploid structures from the following list:
$I$ - Megaspore mother cell
$II$ - Microspore mother cell
$III$ - Egg cell
$IV$ - Male gamete
$V$ - Synergid
$VI$ - Embryo
$VII$ - Antipodal cell
$VIII$ - Zygote
$IX$ - Megaspore
$X$ - Microspore
Select the correct grouping for Haploid and Diploid structures.