List of practice Questions

Calculate the temperature (in K) at which the resistance of a metal becomes 20% more than its resistance at 300 K. The value of the temperature coefficient of resistance for this metal is \(2.0 \times  10^{-4}\)/K.

Components of a Transmission Electron Microscope are

DNA gyrase can

For an enzyme following Michaelis-Menten kinetics, when \([S]=K_M\) then, the velocity v is 
([S] is substrate concentration, \(K_M\) is Michaelis constant, \(V_{max}\) is maximal velocity)

Given that A=\( (sin\theta cos\theta tan\theta + sin\theta cos\theta cot\theta)\), the value of A is

How many GTP molecules are required for the translocation of tRNA from P site to E site during translation elongation process in bacteria?

How many pairs of autosomal chromosomes are there in normal humans?

In a denaturing polyacrylamide gel electrophoresis experiment, pure intact adult human hemoglobin will yield (number) bands.

In a honey bee population, the workers are infertile but protect the queen from intruders and help in reproduction. This is an example of

In a nephron,___ follows the ascending limb of the "loop of Henle".

In a randomly mating population, the frequency of 'A' allele is 0.7. What is the frequency of An" genotype in the next generation according to Hardy- Weinberg's law? (up to two decimal places)

In bacteria, the a fuctor that plays a major role in transcription during the stationary phase is

In the 1'H NMR spectrum of ethanol at 400 MHz, the methyl group splits into ___number of peaks.

In the electron transport chain, flavin mononucleotide (FMN) can adopt___ as the highest oxidation state and is capable of accepting or donating___. electrons, respectively.

Indeterminate growth in plants is due to the presence of perpetually undifferentiated tissues, called as____

Major product formed in the given reaction is

Match the bacterial structure to function

(i)	Cell wall	(a)	Virulence factor
(ii)	Glycocalyx	(b)	Selective permeability
		(c)	Attachment to surfaces
		(d)	Protection from osmotic lysis

Match the following

Group I	Group II
Streptomycin	Inhibits beta-subunit of RNA polymerase
Cycloheximide	Inhibits peptidyl transferase activity of 505 subunit
Rifamycin	Inhibits peptidyl transferase activity of 605 subunit
Chloramphenicol	Inhibits binding of formyl methionine tRNA to ribosome

The average of all positive even integers less than or equal to 40 is___.

The bacterium that can tolerate high concentrations of salt and also ferment mannitol is

The correct statement/s for bimolecular nucleophilic substitution reactions is/are

The enriched media used to facilitate the growth of fastidious microorganisms are

The fossilization process in which mineral rich water penetrates through the pores of decomposed organic matter is known as___.

The net equation for aerobic glycolysis is

The number of "Barr Bodies" present in a somatic cell of a woman suffering from Turner syndrome is___.