List of top Biology Questions

Vertical distribution of different species occupying different levels in a biotic community is known as:
In which of the following, both pairs have correct combination?
The primary dentition in human differs from permanent dentition in not having one of the following type of teeth. deficiency disease caused by lack of thiamine (vitamin B)
Auxin can be bioassayed by
The active form of Entamoeba histolytica feeds upon
The imperfect fungi which are decomposers of litter and help in mineral cycling belong to
A protoplast is a cell
Metagenesis refers to
Which of the following are the important floral rewards to the animal pollinators ?
What causes a green plant exposed to the light, on only one side, to bend towards the source of light as it grows?
Which of the following enhances or induces fusion of protoplasts?
Axile placentation is present in
A technique of micropropagation is
Grafted kidney may be rejected in a patient due to
Which of the following joints would allow no movements?
DNA is not present in
Flowers are unisexual in
is the floral formula of
Which one of the following statements is not true?
Keel is the characteristic feature of flower of
Which one of the following fruits is parthenocarpic?
The oxygen evolved during photosynthesis, comes from water molecules. Which one of the following pairs of elements is involved in this reaction?
Transmission tissue is characteristic feature of
The gametophyte is not an independent, free living generation in :
Which one of the following statements is wrong?