SS DNA, or single-stranded DNA, is a single, linear strand of nucleic acid sequence. Unlike double-stranded DNA, it lacks hydrogen bonds between complementary base pairs, which makes it less stiff and less stable.
Key Characteristics of ssDNA:
Here's a summary of the key characteristics of single-stranded DNA:
| Feature | Description |
|---|---|
| Structure | A single, linear strand of nucleotides. |
| Hydrogen Bonds | Absent; no base pairing within the strand. |
| Stability | Less stable than double-stranded DNA. |
| Stiffness | Less stiff compared to double-stranded DNA. |
| Occurrence | Abundant in viruses, especially those in extreme conditions and marine environments. |
Occurrence and Significance:
- Viruses: ssDNA is commonly found in certain types of viruses, particularly those thriving in extreme or marine environments. These viruses utilize ssDNA as their genetic material.
In summary, ssDNA is a fundamental form of DNA found primarily in specific viruses, characterized by its single-stranded nature and relative instability compared to double-stranded DNA.
