List of practice Questions

The suspensor of the embryo in angiosperms develops from ______________ cell.
Which group of plants do NOT contain vascular tissue?
The megasporangium in angiosperms is usually ______________.
In the reproductive system of a male human being, the ejaculatory ducts open into ______________.
______________ is obtained from fermented grains of mostly barley.
The glans penis is a derivative of ______________.
Genome of an organism CANNOT be altered by ______________.
Select the INCORRECT statement.
In the above diagram, the blood vessel pointed ‘X’ communicates with ______________ and carries ______________ blood.
Struvite stones are derived from ______________.
The monitoring stations, established by NEERI, have reported that Kolkata and New Delhi have highest ______________ and ______________ in air respectively.
Scala tympani of membranous labyrinth ends at A which opens into B. Identify A and B and select correct option.
Holandric genes are present on ______________.
Which one of the following shows interspecific competition?
An adult man feels excessive thirst and excretes large volume of dilute urine. He may be suffering from ______________.
How many pollen grains can be produced from a dithecous tetra-locular anther with 75 microspore mother cells in each of its chamber?
Viviparous germination is seen in ______________.
Which one is used as biofertilizer in paddy fields?
During Krebs cycle, the intermediate $\alpha$-ketoglutarate is formed as a result of ______________.
In inflammatory response, A and B are released by damaged mast cells and basophils.
Hugo de Vries proposed ‘Mutation theory’ by studying the plant ______________.
The new field of biology, explored by HGP was ______________.
Which group of drugs is normally used as medicine?
The commercial hatcheries provide ______________ day old chicks for poultry practices.
A better conserver of water with respect to excretion of nitrogenous waste is ______________.