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Which of the following is not a symptom of Bean Mosaic disease?

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in Biology – Class 12 by (271k points)
Which of the following is not a symptom of Bean Mosaic disease?

(a) Plants are bunchy

(b) Leaves show mottling

(c) Mosaic appearance on leaves

(d) Blackening of leaflets

The question was asked in exam.

This question is from Plant Diseases caused by Viruses and Bacteria topic in portion Strategies for Enhancement in Food Production of Biology – Class 12

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Right option is (d) Blackening of leaflets

Easiest explanation: Bean mosaic infected plants are stunted and bunchy. Their leaves show mottling, yellowing and malformations. Mosaic appears due to the occurrence of light and dark green areas with clearing or yellowing of veins. Seeds are small, malformed or aborted.

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