List of top Biology Questions

The family containing mustard and its main characters are

In which one of the following would you expect to find glyoxysomes ?

Which one of the following four secretions is correctly matched with its source, target and nature of action?

Given below is a pedigree chart showing the inheritance of a certain sex-linked trait in humans. The trait traced in the above pedigree chart is

A young drug addict used to show symptoms of depressed brain activity, feeling of calmness, relaxation and drowsiness. Possibly he was taking

Grain colour in wheat is determined by three pairs of polygenes. Following the cross AABBCC (dark colour) x aabbcc (light colour), in $F_2$ generation what proportion of the progeny is likely to resemble either parent?

Which of the following produces red tide in sea ?

Plant cell differs from animal cell in having

Tonoplast is the membrane which surrounds

Equipment used for the measurement of growth in plants is known as :

Which is correct depiction according to international code of nomenclature ?

Wilting in plants occurs due to

In tall trees, water is absorbed due to

In a woody dicotyledonous tree, which of the following parts will mainly consist of primary tissues?

Golden rice is a transgenic crop of the future with the following improved trait

Coconut milk factor is rich in one of these phytohormones

Anemophilly is pollination by:

Which one of the following is not used for disinfection of drinking water ?

Sense of smell is perceived by

Spermathecae in earthworm is :

Tubular heart of cockroach has how many chambers?

Which of the following group of animals maintains high and constant body temperature such as mammals?

The hormone that controls the level of calcium and phosphorus in the blood is secreted by:

Which of the following disease is not related to thyroid gland?

The process of formation of blood corpuscles is called :