After culturing the anther of a plant, a few diploid plants were found along with haploid plants. The diploid plants could have arisen from
Generative cell of pollen
Cells of anther wall
Vegetative cell of pollen
Exine of pollen wall
$A-$ Events after the formation of zygote are called post fertilization events
$R -$ In viviparous animals a young one develops out side the mother body
Identify $X, Y$ and $Z$ and select the correct option
Which one of the following generates new genetic combinations leading to variation?
Oestrus cycle is seen in
Choose correct option ($T$ = true, $F$ = false).
- If zygote develops out side the body, the animal is oviparous.
- In flowering plants, zygote is formed inside the ovule.
- During embryogenesis, embryo show only cell differentiation.
- In flowering plants, the ovary develops into the fruit.