The prerequisite for electron microsope is

During transcription, the binding of RNA polymerase to the DNA is the prerequisite for the process to start. In prokaryotes this site, (a) Consists of 6 nucleotide bases, (b) Is TATAAT, (c) Is located 10 bp upstream from the start point. (d) Is present in promoter region

Death of protoplasm is a prerequisite for a vital function like

Assertion :- Boron is essential for sexual reproduction in flowering plants Reason:- Boron favours germination of pollen grains which is prerequisite for sexual reproduction.

Electrons used in electron microscope are of the wavelength