List of top Biology Questions

Plant decomposers are
A mutant strain of T4 – Bacteriophage, R-II, fails to lyse the E-Coli but when two strains RIIX and R-IIY are mixed then they lyse th E.Coli. What may be the possible reason
Adhesive pad of fungi penetrate the host with the help of
Adventive embryony in Citrus is due to
What is the best pH of the soil for cultivation of plants : -
Extranuclear chromosomes occur in
Which of the following is the pair of biofertilizers
E. Coli about to replicate was placed in a medium containing radio active thymidine for five minutes. Then it was made to replicate in a normal medium. Which of the following observation shall be correct
Reason of diversity in living being
Loading of phloem is related to
During regeneration, modification of an organ to other organ is known as
Which of the following cut the DNA from specific places
In Negative operon
Most abundant organic compound on earth is
Due to discovery of which of the following in 1980, the evolution was termed as RNA world
Ratio of complementary genes is
What is true for photolithotrophs?
Which hormone breaks dormancy of potato tuber?
What is B.O.D.
Glycolate induces opening of stomata in
Cycas have two cotyledons but not included in angiosperms becuase of
Which aquatic fern performs nitrogen fixation
Before the European invader which vegetable was absent in India
Anemophily type of pollination is found in
Which statement correct about centre of origin of plant