Q 1914456350.     In a biology class, a teacher was telling the
students about a tumor-inducing plasmid from
a common bacterium, Agrobacterium
tumefaciens causes crown gall tumors which is
used by scientists to work in cultured of plant
cells to move desirable genes into the plant
chromosomes and is regarded as 'Natural
Genetic Engineer'. A student aksed how the
bacterium converts a normal plant cell into
tumour cell.
(a) Why do biotechnologists refer to
Agrobacterium tumifaciens as a natural
genetic engineer of plants?
(b) Explain the role of Ti plasmids in
biotechnology?
(c) Why is A. tumefaciens a good cloning
vector? Explain.

NCERT Value Based 11/12/LAT

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