What is backbone ?Also.

What is the backbone of any breeding programme?

What is Venation ?Also classify it.

Assertion (A): Nucleic acids are macromolecules. Reason (R ): Polynucleotide strand is the backbone of nucleic acid.

Chordates with a backbone are called

vertebrates the backbone is made up of several

Which of the following step is the backbone of plant breeding programme ?