MCQ
The process of mating between closely related individuals is.
- ASelf breeding.
- BInbreeding.
- CHybridization.
- DHeterosis.
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| Column $- I$ | Column $- II$ |
| $(1)$ Bacterial membrane | $(p)$ Chitinase |
| $(2)$ Plant cells | $(q)$ Ribonuclease |
| $(3)$ Fangus membrane | $(r)$ Lysozyme |
| $(4)\; RNA$ molecule | $(s)$ Cellulase |
$I$. Each cell of sporogenous tissue in anther is capable of giving rise to microspore tetrad.
$II$. The pollen grain represent male gametophyte.
$III$. Pollen grains are usually triangular and $10-15 \mu m$ in diameter.
$IV$. Sporopollenin is one of the most resistance organic material which can be destroyed only by strong acids
and alkali.