I extracted RNA from the animal tissues by Trizol and phenol technique. The A260/A230 and 260/280 ratio were sometime lower or higher than a normal range. Do this make problems for my real-time PCR results?
As per my understanding low or high RNA purity and concentration ratios can interfere with reverse transcription and PCR amplification, leading to inaccurate results. Clean up your RNA before performing real-time PCR.