List of top Biology Questions

Which of the following is a pair of viral diseases?
The correct sequence of plants in a hydrosere is
Guard cells help in
Diploid structure found in embryo sac is
Inactive cancer gene is called
Path of ascent of sap is
Cod liver oil is rich in
Study the pedigree chart given below. What does it show?
T.O. Diener discovered a
Cytoskeleton is made up of
Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem ?
Which one of the following is monoecious?
Which one of the following is considered important in the development of seed habit?
Which one of the following has haplontic life cycle?
A fruit developed from hypanthodium inflorescence is called
Which one of the following is a vascular cryptogam ?
Which of the following is properly matched ?
The greatest threat to genetic diversity in agricultural crops is
Compare the statements A and B Statement A : Ranikhet disease is the disease of poultry. Statement B : It is caused by a virus. Select the correct description.
Alzheimer disease in humans is associated with the deficiency of
The given figure shows a diagrammatic sketch of a portion of human male reproductive system. Identify the parts labelled as $A$, $B$, $C$ and $D$ and select the correct option.
Compared to blood our lymph has
Which one of the following is the correct matching of the events occurring during menstrual cycle?
Which one of the following pairs of animals comprises 'jawless fishes'?
Globulins contained in human blood plasma are primarily involved in