Question

In vegetative propagation by tubers, which of following
remains constant through generations?

• A. Vigour only
  
• B. Morphology, vigour and disease resistance
  
• C. Morphology
  
• D. Vigour and morphology only
  

Answer 1

The correct option is B Morphology, vigour and disease resistance


Vegetative reproduction
Vegetative reproduction is a form of asexual reproduction occurring in plants in which a new plant grows from vegetative parts of the parent plant such as stem, root or leaves.
There is no gamete fusion or mixing of chromosomes from two different parents.
Thus, the offspring are identical to the parent plant and are identical to the parent in characters like morphology, vigour, disease resistance etc.

Final answer:

(d) Morphology, vigour and disease resistance