Problem:
Please search references for these questions
Question 1: Compare the hybridization strengths for the PNA-DNA (or RNA) complex and DNA-DNA (RNA) complex in the same condition.
Question 2: Salt concentration is an important factor to regulate hybridization strength:
Question 3: How does PNA-DNA binding strength change with salt concentration? Why?
Question 4: How does DNA-DNA binding strength change with salt concentration?Why?
Provide references here, if you have.