List of top Biology Questions

Number of nitrogenous bases in a codon is
T-lymphocyte is produced in
In which stage of cell division chromosomes are most condensed?
A character which is expressed in a hybrid is called
The genetic material of rabies virus is
The 32 celled stage of human embryo is
Isolation of Bt gene from bacterium (Bacillus thuringiensis) was taken up in the year
International Rice Research Institute (IRRI) is located in
In females the hormone inhibin is secreted by
In chlorophyll structure four pyrrole rings are united with Mg by their atoms of
Environment Protection Act, to protect and improve the quality of our environment (air, water and soil) was passed in the year
One of the chief functions of smooth endoplasmic reticulum is
The microtubules from opposite poles of spindle get attached to the kinetochores of sister chromatids in
In the nymphal stage of cockroach the juvenile hormone is secreted by
Myelin of nerve fibres of central nervous system is produced and maintained by
Sexual reproduction in fungi may lead to formation of
The famous botanical garden of Kew is located in
Axoneme having 9 + 2 doublet microtubule arrangement is found in
In seven pairs of contrasting characters in pea plant studied by Mendel the number of flower based characters was
Which of the following provides most evident proof of evolution?
The vitamin which is essential for blood clotting is
The vacuole is lined by a membrane called
Synsacrum of fowl consists of about
In which form does the food transported in plants?
In Pheretima, septa are absent between which segments?