What is the difference between lower case and upper case nucleotides in a sequence? My other question is what are the dots at the end of the sequence? Some examples are shown below:
- GGgG,GGgG,GGgG,GGgG,GGGG,GGGG…
- GGGG,GGGG,GGGG,GGGG,GGGG,GGGG…
- GGGG,gggg,GGGG,GGGG,UUUU
- ggGg,ggGg,ggGg,GGgG,GGgG,GGgG…
These sequences are real experimental samples. I obtained them from QuadBase. Here is the link below:
Hopefully you will provide some literature within the thread in order to understand this concept in bioinformatics. BTW I'm a beginner in this field and hopefully this Bioinformatics Stack Exchange site will help me find out the answers.