Which of the following are correct for numerical taxonomy? (i) Based on all observable characteristics. (ii) Uses chemical constituents of the plant to resolved confusion. (iii) Based on cytological information like chromosome number, structure and behavior. (iv) Numbers and codes assigned to a few characters. (v) At the same time, hundreds of characters can be considered. (vi) Carried out using computers.

Step-by-step solution

Numerical Taxonomy is now carried out using computers is based on all observable characteristics. Number and codes are assigned to all the characters and the data are then processed. In this way each character is given equal importance and at the same time hundreds of characters can be considered. Cytotaxonomy that is based on cytological information like chromosome number, structure, behaviour and chemotaxonomy that uses the chemical constituents of the plant to resolve confusions, are also used by taxonomists the