Unisexuality of flowers prevents

The total number of nitrogenous bases in the human genome is estimated to be about

Which is the most important cereal crop of temperate regions?

Which of the following is the strongest Lewis acid?

For the reaction sequence given below, the correct statement$(s)$ is$(are)$
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$(A)$ Both $X$ and $Y$ are oxygen containing compounds.
$(B) \ Y$ on heating with $CHCl _3 / KOH$ forms isocyanide.
$(C) \ Z$ reacts with Hinsberg's reagent.
$(D) \ Z$ is an aromatic primary amine.

The point collinear with $(1, -2, -3)$ and $(2, 0, 0)$ among the following is