List of top Biology Questions

Which one of the following pyramid will be always inverted?
Match the Column-I with Column-II and select the correct option.
Occurrence of an extra chromosome in a diploid set of chromosomes is called ___________.
In a pregnant woman, ___________ is the major source of progesterone during the first trimester.
A pollen grain is provided resistance from physical and biological decomposition by its ___________.
The expelled excited electron from chlorophyll-a after photo excitation comes back to ground state in ___________.
Spinal cord is a cylindrical tube with a narrow cavity, lined by ependymal cells. This cavity is called ___________.
In DNA molecule at the 5$'$ end there is a free ___________.
Duct of Bellini is formed by joining ___________ collecting ducts.
Select the INCORRECT match.
___________ gives seeds protection against mechanical shock, dry conditions, etc.
India contributes ___________% of total lac production in the world.
Finches of Galapagos islands differ from mainland finches in size, colour and food habits. It is due to
Which one of the following enzyme does NOT operate in Lac Operon?
Which phytohormone is useful for leaf expansion in leafy vegetables?
The acceptor of atmospheric CO$_2$ in C$_3$ plants is ______.
During anaerobic respiration, pyruvate undergoes decarboxylation in presence of enzyme pyruvate decarboxylase. Which of the following coenzymes and cofactors respectively are required in this reaction?
Which one of the following is dominant among the wing sizes in {Drosophila?
In honey bees, drones are produced by ______.
Cancer characterized by a change in wart or mole on the skin is called ______.
Column-I consists of names of fungi classes while Column-II consists of names of genera. Find out the correct option.
Which gland in the male human being is homologous to the vestibular gland in the human female?
Which one of the following is a restriction enzyme?
Dihybrid ratio is a product of two monohybrid ratios. Which principle of statistics did Mendel apply here?
Match the correct numbers regarding the inheritance of human skin colour.
Number of different types of gametes produced by multialleles Total number of different combinations in F$_2$ generation Number of different phenotypes in F$_2$ generation