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Question
Assertion :Transgenic plants having virus coat protein gene express resistance to that virus and other related varieties. Reason: Coat protein gene interferes with uncoating of viruses inside the plant cells.
Assertion :Transgenic plants having virus coat protein gene express resistance to that virus and other related varieties. Reason: Coat protein gene interferes with uncoating of viruses inside the plant cells.
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Transgenic plants having virus coat proteins gene linked to a strong promoter have been produced in many crop plants e.g. tobacco, tomato, alfalfa, sugar beet, potato, etc. The first transgenic plant of this type was tobacco produced in 1986, which contained coat protein gene of Tobacco Mosaic virus (TMV) strain U1. Most likely the resistance generated by CP (coat protein gene ) is due to blocking of the process of uncoating of virus particles, which is necessary for viral genome replication as well as expression. However, other effects seem to be involved in producing coat protein mediated virus resistance.
Transgenic plants having virus coat proteins gene linked to a strong promoter have been produced in many crop plants e.g. tobacco, tomato, alfalfa, sugar beet, potato, etc. The first transgenic plant of this type was tobacco produced in 1986, which contained coat protein gene of Tobacco Mosaic virus (TMV) strain U1. Most likely the resistance generated by CP (coat protein gene ) is due to blocking of the process of uncoating of virus particles, which is necessary for viral genome replication as well as expression. However, other effects seem to be involved in producing coat protein mediated virus resistance.
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