List of practice Questions

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?
Which of the following is used as an oxidising agent in hybrid fuel?
Deficiency of vitamin $H$ causes
Select the basic dye from the following
Cellulose is soluble in
These W.B.C.s make maximum count amongst leucocytes ?
In which disease, due to flattening of tracheal vessels, alveoli are deprived of oxygen ?
Which one of the following is a conjugated protein?
The wavelength of the first spectral line of sodium is $5896 \,??. The first excitation potential of sodium atom will be $\left(h=6.63 \times 10^{-34} \,Js \right)$
If the coefficient of static friction between the tyres and road is $0.5$, what is the shortest distance in which an automobile can be stopped when travelling at $72\,km/h$?
Half-lives of two radioactive substances A and B are respectively 20 min and 40 min. Initially the samples of A and B have equal number of nuclei. After 80 min the ratio of remaining number of A and B nuclei is
Compressional wave pulses are sent to the bottom of sea from a ship and the echo is heard after $2 s$. If bulk modulus of elasticity of water is $2 \times 10^{9} \,N / m ^{2}$ and mean temperature is $4^{\circ} C$, the depth of the sea will be
The chemical formula of plaster of Paris is
Which one of the following has square planar structure?