List of practice Questions

Which of following mineral-nutrients plays an important role in biological nitrogen fixation?

The lock and key model of enzyme action illustrates that a particular enzyme molecule

The effectiveness of an enzyme is affected least by

Somaclones are obtained by

Recombination is involved in the process of

Niche is defined as the

Lime is added to the soil which is too

Largest single mass of lymphatic tissue in the body is

It is believed that atoms combine with each other such that the outermost shell acquires a stable configuration of $8$ electrons. If stability were attained with $6$ electrons rather than $8$; what would be the formula of the stable fluoride ion?

In higher plants, the shape of the chloroplast is

In the change of $NO \, \to\, NO^+$ the electron is added to

For what distance is ray optics a good approximation when the aperture is $4 \,mm$ wide and the wavelength is $500 \,nm$?

Endoplasmic reticulum is in continuation with :

Deserts, grasslands, forests and tundra are the examples of

Diploid cells have

Electroporation Procedure involves

Which of the following reactions will not result in the formation of carbon-carbon bonds ?

The value of electronegativity of /atoms $A$ and $B$ are $1.2$ and $4.0$ respectively. The $\%$ ionic character of the $A - B$ bond is

Aldol condensation does not occur between

Electronic configuration of $ Cu^{ 2 + } $ ion is

Correct order of bond angles for the following is

Find the organic acid produced from the 11bove reaction

Out of $N_2O,SO_2,I_3^+,I_3^- ,H_2O,NO_2^- \, and \, N_3^-$the linear species are

'Good ozone' is found in the

Hypertension is not caused by