List of top Biology Questions

The animals with bilateral symmetry in young stage, and radial pentamerous symmetry in the adult stage, belong to the phylum
In transgenics expression of transgene in target tissue is determined by
In which of the following pairs is the specific characteristic of a soil not correctly matched
Edible part of mango is :
The maximum growth rate occurs in
In oogamy fertilization involves
The most abundant element present in the plant is
Which one of the following precedes reformation of nuclear envelope during M-phase of cell cycle ?
Movement among cells against concentration gradient is called :
Recently Govt. of India has allowed mixing of alcohol in petrol. What is the amount of alcohol permitted for mixing in petrol
Which of the following is expected to have the highest value (gm/m2/yr) in a grassland ecosystem
The maximum growth rate occurs in
Blood analysis of a patient reveals an unusually high quantity of carboxyhaemoglobin content. Which of the following conclusions is most likely to be correct? The patient has been inhaling polluted air containing unusually high content of
Lack of independent assortment of two genes-$A$ and $B$ in fruit fly-Drosophila is due to
Restriction endonucleases
Mast cells of connective tissue contain

When CO2 concentration in blood increases, breathing becomes

DNA fingerprinting refer to
In which one of the following enzymes, is copper necessarily associated as an activator
Which of the following statements is not true for retroviruses
Diversification in plant life appeared
Which one of the following is the correct matching of a vitamin, its nature and its deficiency disease
A terrestrial animal must be able to
In a longitudinal section of a root, starting from the tip upward, the four zones occur in the following order
An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is