Transgenic Plant
ACC demainase gene is responsible for

synthesis for ethylene
synthesis of polygalactouranase
degradation of ACC an immediate precursor to ethylene
both (a) and (b)

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Transgenic Plant
Which of the following has been widely used to provide resistance against plant viruses?

Virus resistance genes from bacteria
Expression of virus coat protein genes in transgenic plants
Expression of anti-virus genes in vectors that transmit viruses
Expression of ribonuclease (RNase) genes in host plants

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Transgenic Plant
In transgenic plants that have been manipulated to express patho-genesis-related (PR) proteins all the time it has been shown that

these proteins trigger the production of other antimicrobial defenses
these provide no protection at all against pathogens
expression of one PR protein provides high levels of protection against many pathogens
expression of two PR proteins provides some protection against a few pathogens

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