Assertion :- The tumor inducing (Ti) plasmid | vedclass

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Question

(B) The Assertion is correct: The $Ti$ plasmid of $Agrobacterium$ $tumefaciens$ is a natural genetic engineer that transfers $DNA$ into plants. Scient

Vedclass · Accepted Answer

Assertion and Reason are correct but Reason is not the correct explanation of Assertion.

Vedclass · Answer

(B) The Assertion is correct: The $Ti$ plasmid of $Agrobacterium$ $tumefaciens$ is a natural genetic engineer that transfers $DNA$ into plants. Scientists have modified it into a cloning vector by removing the tumor-inducing genes,making it safe for gene transfer.The Reason is also correct: Retroviruses have the ability to infect cells and integrate their genetic material into the host genome. By disarming them (removing pathogenic genes),they are successfully used as vectors to deliver desired genes into animal cells.Both statements are factually correct,but the Reason does not explain why the $Ti$ plasmid was modified; it describes a separate mechanism for animal cell transformation. Therefore,the Reason is not the correct explanation of the Assertion.

Column-$I$	Column-$II$
$(a)$ $K$.$C$. Mehta	$(i)$ Fluid mosaic model
$(b)$ $P$. Maheshwari	$(ii)$ First recombinant plasmid
$(c)$ Cohen and Boyer	$(iii)$ Haploid culture
$(d)$ Singer and Nicolson	$(iv)$ Rust disease

Column-$I$	Column-$II$
$(a)$ Ethidium Bromide	$(i)$ Agrobacterium
$(b)$ Ti plasmid	$(ii)$ Tetracycline
$(c)$ $PvuI$	$(iii)$ Gel electrophoresis
	$(iv)$ Ampicillin

Assertion $:-$ The tumor inducing $(Ti)$ plasmid of $Agrobacterium$ $tumefaciens$ has now been modified into a cloning vector.
Reason $:-$ Retroviruses have been disarmed and are now used to deliver genes into animal cells.

Similar Questions

Match the Column-$I$ with Column-$II$:

Column-$I$ Column-$II$

$(a)$ $K$.$C$. Mehta $(i)$ Fluid mosaic model

$(b)$ $P$. Maheshwari $(ii)$ First recombinant plasmid

$(c)$ Cohen and Boyer $(iii)$ Haploid culture

$(d)$ Singer and Nicolson $(iv)$ Rust disease

$PCR$ is used to:

$DNA$ recombinant technology can be:

Match the columns:
Column-$I$ Column-$II$
$(a)$ Ethidium Bromide $(i)$ Agrobacterium
$(b)$ Ti plasmid $(ii)$ Tetracycline
$(c)$ $PvuI$ $(iii)$ Gel electrophoresis
$(iv)$ Ampicillin

Which of these is widely used in genetic engineering?

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Assertion $:-$ The tumor inducing $(Ti)$ plasmid of $Agrobacterium$ $tumefaciens$ has now been modified into a cloning vector.Reason $:-$ Retroviruses have been disarmed and are now used to deliver genes into animal cells.