List of top Biology Questions

These processes are necessary for the complete development of male gametophyte from pollen mother cell
From which cells peripherial region of radicle is produced ?
The structure of which of the following consists of a layer of single cell thickness ?
With respect to mode of excretion which type of organism bony fishes are ?
Which of the following is responsible for excretion of dilute urine ?
It is present in rod cells and useful in night vision
Which element is required in the germination of pollen grain?
In which disease, due to flattening of tracheal vessels, alveoli are deprived of oxygen ?
These W.B.C.s make maximum count amongst leucocytes ?
Which of the following nerve is purely motor nerve?
Which of the following is the correct statement about the circulatory system of cockroach ?
Which of the following plant hormone is extracted from fungus ?
Which ecosystem has the highest primary productivity ?
The part where fertilization of ovum takes place in humans and other placental mammals is
Nissl's granules are absent in
Light reaction of photosynthesis occurs inside
Humus is present in
Green glands present in some arthropods, help in
The progesterone is secreted by
Ozone hole results in
The infection of Enterobius is caused in man by
Histones are
Which of the following rank contains organisms most similar to one another?
Virus envelope is known as
Which of the following process requires ATP ?