List of top Biology Questions

Pteridophytes are also called
The integument of Cycas ovule is hard on account of
To which of the groups would you assign plant lacks ovules and reproduces by means of spores ?
A typical gymnospermous plant has 8 chromosomes in leaf cells. What will be number of chromosomes in the cells of the gametophyte ?
The pigment phycoerythrin is characteristic of
During fertilization in ferns, male gamete reaches the female gamete through the agency of
Fucoxanthin is present in
In gymnosperms how many male gametes are produced by each pollen grain ?
Which of the following is known as `resurrection plant??
Most primitive members in which roots are not present, is :
Gibberellic acid induces flowering:
Radish is a modified root and an example of:
Sertoli cells are found in
Reflex action is controlled by
Haemodialysis helps in patient having:
'Heart of heart' is:
Amia belongs to family
Transfusion tissue is found in:
The Triticale is an intergeneric hybrid between:
Somatic hybrids are produced by:
Somaclonal variation appears in
Sex linked characters have one distinct feature
Sense of smell is perceived by :
Schwann cell is found around:
Reverse transcription results in the synthesis of