Question

Virus free plants can be formed by?

• A. Meristem culture
• B. Callus culture
• C. Somatic cell culture
• D. Protoplast fusion

Answer 1

The correct option is A Meristem culture

• When plant breeders want to re-generate plants that are virus-free using asexual multiplication (in order to obtain clones of the primary unhealthy plant), they often collect the apical meristem from the infected plant and cultivate it inappropriate media, so that a new, complete and virus-free plantlets develop.
• Virus-free plants can be formed by meristem culture because of the viruses spread systematically in the whole plant except the meristems when they colonize a new plant host, via phloem vascular element.
• So, the correct answer is 'Meristem culture'.