Both polymerase removal and repair enzyme recruitment are performed by a single protein called TRCF.

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#Id: 6165

#Unit 12. Applied Biology

Second generation of improved Bt-cotton with two Bt-genes, now designated Bollgard II.  Bollgard II cotton contains Cry 1 A(c) and Cry II A(b).

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#Id: 6166

#Unit 12. Applied Biology

B. thuringiensis is a spore forming bacterium, which produces a crystal protein as parasporic inclusion in the vegetative cell containing the spore.

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#Id: 6167

#Unit 12. Applied Biology

The cry gene of B. thuringiensis produces a protein, which forms crystalline inclusions in the bacterial spores. These crystal proteins are responsible for the insecticidal activities of the bacterial strains.

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#Id: 6168

#Unit 12. Applied Biology

Cry proteins divided into four main groups or first ranks, viz., Cryl, Cry II, CryIII and CryIV, on the basis of their insecticidal activities.

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#Id: 6169

#Unit 12. Applied Biology

The commercial Bt–cotton available today contain genes from the isolate B-thuringiensis, ssp. that produces Cry I A(a), Cry I A(b), Cry I A(c), Cry IIA.

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#Id: 6170

#Unit 12. Applied Biology

The Cry proteins are solubilized in the alkaline environment of insect midgut and are then proteolytically processed to yield a toxic core fragment.