Pea plants produce seeds only by --------

 A cross between a tall plant (TT ) and short pea plant (Tt) resulted in progeny that were all tall plants because.

 A device having immobilized layer of biological material such as enzyme, antibody etc is called

________ are bio catalysts which speed up a reaction.

------ was a predecessor of Darwin and he  developed the theory of acquired characters.

The small difference among individuals are called ______.

_________ are produced by virus infected cells.

Vitamin B₁₂ is used to cure ------------

An example of adult somatic stem cell is.

The zygote develops into a hollow blastula by