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.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true but reason is false
D. If both assertion and reason are false

Answer

A

Explanation

Transgenic plants having virus coat protein gene linked to a strong promoter have been produced in many crop plants e.g., tabacco,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. `U_(1)`. Most likely the resistance generated by CP (coat protein gene) is due to the blocking of the process of uncoating of virus particles, which is neccessary for viral genome replication as well as expression. However, other effects seem to be involved in producing coat protein mediated virus resistance.