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Hind II always join DNA molecules at spe...

Hind II always join DNA molecules at specific site by recognising a particular sequence of six base pairs.

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**Step-by-Step Solution:** 1. **Understanding the Function of Hind II**: - Hind II is a type of restriction endonuclease, which is an enzyme that cuts DNA at specific sites. It recognizes specific sequences of nucleotides in the DNA. 2. **Recognizing the Sequence**: - Hind II recognizes a particular sequence of six base pairs in the DNA. This means it scans the DNA for this specific sequence before it can act. ...
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