List of top Biology Questions

Which of the following bacterial component contains "dipicolinic acid"?

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

A random fluctuation in gene frequency is called

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

Which of the following are produced by Mangrove trees to survive in the waterlogged swampy forests?

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

The osmotic potential (Ψ) of pure water is___ MPa.

Bacteria containing a tuft of flagella that comes out from one pole is called___.

A frameshift mutation is caused by___

The zone of a pond system where respiration is more than production is called as___

An organism that causes obstruction of lymphatic system in humans is___

A man having a dominant genetic trait (TT genotype) can laste phenylthiocarbamide (PTC), marries a woman who cannot taste PTC. The PTC tasting ability of their biological son and daughter is

Which of the following enzymes is absent in a person suffering from Alkaptonuria?

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

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

DNA gyrase can

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

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)

The net equation for aerobic glycolysis is

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

A rise in cytosolic calcium ion concentration just after fertilization in a sea urchin egg leads to

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

Transpirational pull that extends down to the roots in plants can be interrupted by

Transfer of plasmids into animal cells can be achieved by

Archaeal cell membranes contain lipids that are