List of top Biology Questions

Saheli, is an oral contraceptive pill that has very high contraceptive value with little side effects. It is because
Plants can be made disease resistant through
Passive immunity is defined as immunity
Palade discovered which of the following cell organelles?
Osmosis is a type of
Objects less than $0.2\, �m$ in size cannot be seen under light microscope because
Match column I with column II and select the correct option from the given codes.
Match Column I with Column II and choose the correct answer.
Censar mechanism of seed dispersal is found in
The enlarged Q and R waves indicate myocardial infarction. The QRS complex represents ventricular repolarisation.
Which of the following is not a characteristic of $pBR322$ vector?
Wine and beer are produced directly by fermentation whereas brandy and whisky require both fermentation and distillation. This is because
Which of the following cells produce antibodies?
Which of the following are a group of micronutrients for plants?
Which is the longest phase of the cell cycle?
Which antibiotic has bactericidal effect?
Vernalisation is subjected to plants growing in
Tubectomy is a method of sterilization in which
Transfer of pollen grains from the anther to the stigma of another flower of the different plant is known as
To produce one molecule of glucose Calvin cycle turns
The sound producing organ of bird is called as
The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monomer are known as
The roots hanging from the branches of banyan tree are
The release of sperms from the seminiferous tubules is called
The middle lamella is composed of