List of top Biology Questions

Which one of the following living organisms completely lacks a cell wall?
Select the Taxon mentioned that represents both marine and freshwater species
Planaria possess high capacity of:
A marine cartilaginous fish that can produce electric current is:
Viruses have :
Which one of the following is a non-reducing carbohydrate?
In which one of the following processes CO2 is not released?
The osmotic expansion of a cell kept in water is chiefly regulated by:
Match the following and select the correct option:
(a)Earthworm(i)Pioneer species
(b)Succession(ii)Detritivore
(c)Ecosystem service(iii)Natality
(d)Population growth(iv)Pollination
You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two?
The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monomer are known as:
Which one of the following statements is not correct?
When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as
At which stage of HIV infection does one usually show symptoms of AIDS?
Five kingdom system of classification suggested by R.H. Whittaker is not based on:
To obtain virus-free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken?
Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of:
Which one of the following are analogous structures?
Which structures perform the function of mitochondria in bacteria?
Pollen tablets are available in the market for:
Just as a person moving from Delhi to Shimla to escape the heat for the duration of hot summer, thousands of migratory birds from Siberia and other extremely cold northern regions move to:
An example of ex situ conservation is:
Fruit colour in squash is an example of:
In vitro clonal propagation in plants is characterized by:
The main function of mammalian corpus luteum is to produce: