What are sticky ends? State their significance in recombination DNA technology.

Explanation

### Step-by-Step Solution

**Step 1: Definition of Sticky Ends**
Sticky ends are short, single-stranded overhangs of DNA that are created when a restriction enzyme cuts the DNA at specific locations. These cuts occur at different positions on complementary strands, resulting in unpaired bases at the ends of the DNA fragments.

**Step 2: Mechanism of Formation**
When a restriction enzyme recognizes a specific sequence in the DNA, it makes cuts in both strands of the DNA, but not directly across from each other. This staggered cutting results in one strand extending beyond the other, creating the "sticky" overhangs.

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