Answer:
D) Density of air and humidity levels
Explanation:
Melatonin (<span>also known as N-acetyl-5-methoxy tryptamine)</span>
D. Asteroids vary greatly in size and are mostly made up stone, iron and nickel
Answer: Ethidium bromide is the most commonly used dye for DNA and RNA detection in gels. Ethidium bromide is a DNA intercalator, inserting itself between the base pairs in the double helix. Ethidium bromide has UV absorbance maxima at 300 and 360 nm, and an emission maximum at 590 nm.
Hope this helps....... Stay safe and have a Merry Christmas!!!!!!!!! :D
