List of top Biology Questions

Name the type of sclereids present in seed coat of the pulses.
Indefinite number of stamens are the characteristic of the family
Which-one of the following is a mismatch of blood pigment and.organism?
Which one of the following is responsible for causing skin cancer and mutation ?
_________ is known as Portuguese man of war.
Which of the follwing cannot be employed as a cloning vector ?
Apical dominance in higher plants is due to
Kary B. Mullis got Nobel prize for discovering
Spawning in fishes is induced by injecting the female with
If the vasa deferentia of man are surgically removed
It is a process of embryo formation from cell of nucellus, without undergoing meiosis
With increasing age, secretion of which of the following reduces to almost half ?
Which of the following is true for the effect of steroid hormone ?
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 ?