List of top Biology Questions

Incorrect statement with regard to haemophilia is
A biologist studied the population of rats in a barn. He found that average natality was 250, average mortality 240, immigration 20 and emigration 30. The net increase in population is
Which of the following represent maximum number of species among global biodiversity
Which one of the following statements is correct regarding sexually transmitted infections $(STIs)$?
Pigment containing membranous extensions in some cyanobacteria are
Satellite RNAs are present in some
Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicum, sweet pea, Petunia, Indigofera, mustard, soybean, tobacco and groundnut, how many plants have corolla with valvate aestivation?
A sedentary sea anemone gets attached to the shell lining of hermit crab. The association is :
Which one of the following useful organisms is not a part in production of curd/yoghurt?
A major site for synthesis of lipids is
Global warming can be controlled by :
Syngamy can occur outside the body of the organism in
The term 'glycocalyx' is used for :
Kyoto Protocol was endorsed at
Which one of the following is not correct as regards the harmful effects of particulate matter of the size 2.5 micro meters or less ?
The plant body is thalloid in
Megaspores are produced from the megaspore mother cells after
A good producer of citric acid is
Megasporangium is equivalent to
Monoecious plant of Chara shows occurrence of :
Natural reservoir of phosphorus is
Perisperm differs from endosperm in
Satellite RNAs are present in some
The figure shows a section of human ovary. Select the option which gives the correct identification of either A or B with function/characteristic.
One of the legal methods of birth control is