what-makes-cationic-dyes-such-as-methylene-blue-so-popular-in-biological-stainin

Question

What makes cationic dyes, such as methylene blue, so popular in biological staining methods?

Accepted Answer

They bond with negatively charged molecules

Answer

They are colorless and do not interfere with microscopy

Answer

They bond with positively charged molecules

Answer

They only bind with neutral molecules