Jumping genes are found in:

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.

Two coherent monochromatic light beams of intensities $I$ and $4I$ are superposed. The maximum and minimum possible intensities in the resulting beam are:

Golgi bodies are absent in . . . . . . .

Which of the following is $NOT$ included in $In-situ$ conservation?

If an electron in a hydrogen atom jumps from the $3^{\text{rd}}$ orbit to the $2^{\text{nd}}$ orbit,it emits a photon of wavelength $\lambda$. When it jumps from the $4^{\text{th}}$ orbit to the $3^{\text{rd}}$ orbit,the corresponding wavelength of the photon will be