List of top Biology Questions

Which one of the following is wrongly matched?
Male gametophyte with least number of cells is present in:
Injury localized to the hypothalamus would most likely disrupt:
The motile bacteria are able to move by:
Which of the following is responsible for peat formation?
Given below is the representation of the extent of global diversity of invertebrates. What groups the four portions (A-D) represent respectively?
Tubectomy is a method of sterilization in which :
The shared terminal duct of the reproductive and urinary system in the human male is:
Select the correct option describing gonadotropin activity in a normal pregnant female:
In a population of 1000 individuals 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is
Adventitious buds at the leaf notches help to propagate the plant of
Person with blood group AB is considered as universal recipient because he has
Pollen tablets are available in the market for
The organization which publishes the Red list of species is
Function of filiform apparatus is to
Identify the given figure and select the correct option for $A$, $B$ and $C$.
A few normal seedlings of tomato were kept in a dark room. After a few days they were found i to have become white-coloured like albinos. Which of the following terms will you use to describe them?
Stimulation of a muscle fiber by a motor neuron occurs at
Deficiency symptoms of nitrogen and potassium are visible first in
Tracheids differ from other tracheary elements in
In vitro clonal propagation in plants is characterized by
The main function of mammalian corpus luteum is to produce
Anoxygenic photosynthesis is characteristic of
The hormone releasing IUD is
Geitonogamy involves