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Delhi - 2015 (Compartment)
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Q7 of 42 Page 1

What is EcoRI ? How does EcoRI differ from an exonuclease ?

EcoRI is a restriction endonuclease enzyme isolated from species E. coli. The Eco part of the enzyme's name originates from the species from which it was isolated, while the R represents the particular strain, in this case RY13.



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5

Mention the economic value of Apis indica.

6

Shark is eurythermal while polar bear is stenothermal. What is the advantage the former has and what is the constraint the later has?

8


(a) What are the after effects of the degradation of ozone ?


(b) How does it affect human health ?


9

A childless couple has agreed for a test tube baby programme. List only the basic steps the procedure would involve to conceive the baby.

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Banana fruit is said to be parthenocarpic where as turkey is said to be parthenogenetic. Why ?


Questions · 42
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