List of top Biology Questions

$HCl$ is secreted by :
Inner lining of blood vessels is formed by:
Common feature of Euglena, Amoeba, Tryanosoma and Entamoeba is
Senescence is the time when age associated defects are manifested. Certain genes may be undergoing sequential switching on and off during one?? life.
A typical gymnospermous plant has 8 chromosomes in leaf cells. What will be number of chromosomes in the cells of the gametophyte ?
To which of the groups would you assign plant lacks ovules and reproduces by means of spores ?
During fertilization in ferns, male gamete reaches the female gamete through the agency of
Most primitive members in which roots are not present, is :
Fucoxanthin is present in
The pigment phycoerythrin is characteristic of
Which of the following is known as `resurrection plant??
Having capacity of absorbing water, used to replace cotton and used as fuel
Selaginella leaf possesses an adaxial out growth proximally
In gymnosperms how many male gametes are produced by each pollen grain ?
Negatively geotropic roots are found in
Dominant generation in bryophytes is
In Chlamydomonas the meiosis occurs in :
The integument of Cycas ovule is hard on account of
Which pteridophyte is called horse-tail ?
The edible dry fruit 'Chilgoza' is
First vascular plant group is
Algae which form motile colony is
Pteridophytes are also called
Gibberellic acid induces flowering:
Radish is a modified root and an example of: