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Selectable markers in recombinant DNA technology, helps in identification and elimination of non-transformants and selectively permits the growth of the transformants.

1. Selectable markers help in identifying transformants.
2. Selectable markers help in identifying non-transformants.
3. Selectable markers help in identifying both transformants and non-transformants.
4. Selectable markers do not help in identification.

Correct answer: Selectable markers help in identifying both transformants and non-transformants.

Solution

Selectable markers are used to separate transformed cells from non-transformed ones, so they help identify both groups. They allow only transformants to grow under selective conditions while non-transformants are eliminated or distinguished.

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