MCQ
The reason for diversity in living beings:
- AMutation
- ✓Long term Evolutionary changes
- CGradual changes
- DShort term evolution changes
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$II.$ The bacteria should be made competent toaccept the $DNA$ molecule.
The Correct option regarding the above statements is

$I$. To study the normal physiology and development
$II$. To study diseases
$III$. To obtain useful biological products
$IV$. To test the vaccine safety
$V$. To test the chemical safety
Which of the above statements are correct?