| (i) Give the scientific name of the soil bacterium which produces crystal (Cry) proteins. |
| (ii) How are these proteins useful in agriculture? |
(iii) What do the differently written terms 'Cry' and ' ' represent respectively? |
Answer:
(i)
(ii) These Cry proteins are toxic to certain larvae of insects and thus provide resistance from them. The gene encoding Cry proteins are used in several crop plants (Bt toxin). Such a crop plant is resistant to the particular insect pest.
(iii) Cry represents crystal protein while cry refers to the gene encoding the Cry protein.
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