1 Yellow media without gas pocket-sugar utilization with production of acid only. 2  Red media (no change in media) -no change and no sugar utilization. 3  Pink media especially at the top, ignore gas-no sugar utilization with degradation of protein resulting in alkaline end products (this may be difficult to see).
With organic solvents with long alkane chain, such as n-hexadecane and n-decane, the water droplets become much larger and the microemulsion is unstable. In this case, solvent polarity may have become a determining factor and the long alkane chain was too hydrophobic to form a stable microemulsion with water.
Report Abuse. Yes, becasue it is double stranded it is a closed system with no areas for molecular bonding. RNA, being an single-stranded open system, is more prone to chemical reactions (which is some cases is a good thing) but therefore it is less stable.eport Abuse. Because RNA has a hydroxyl group at the 2' position on the ribose backbone. This is an easy site for degradation to occur. DNA does not have this site (it is replaced by a hydrogen), that is why its backbone is called deoxyribose.