List of top Biology Questions

Companion cells are associated with

Citrus canker is caused by

The term "gene" was introduced by:

The infective stage of Entamoeba histolytica is:

Ploidy of endothecium, microspore mother cell, tapetum and microspore is respectively,

The endosperm in gymnosperm is formed after fertilisation. The endosperm of gymnosperm is formed by triple fusion.

Pteridophytes are also called as:

Which is present in urine of pregnant woman

Thermococcus, Methanococcus and Methanobacterium exemplify

The site of origin of the new plantlets in potato, dahlia, ginger and banana is

The saturation point of CO in C plants is

The given diagrams show stomatal apparatus in dicots and monocots. Which one is correct option for A, B and C?

The experiment material used by Van Neil, to prove that O comes out from water was studied on

Shape of chloroplast of Ulothrix is

Select the correct matching.

Purkinje fibres are present in

Perianth is found in which family :

Palmella statge is present in

Monascus purpureus is a yeast used commercially in the production of

Malignant malaria is caused by the which of the following species of Plasmodium ?

The breeding technique that is useful to expose harmful recessive genes is

Brunner's gland is located in

Above diagram represents

Heterotrichous thallus is shown by which organism

Which of the following is/are free living nitrogen fixers?