Make a personal spider repellent to repel spiders and ticks. To make the personal repellent, mix 1 tsp. of essential lavender oil with 8 oz. of your favorite sunscreen, face lotion, body lotion or aloe vera gel. Shake the mixture well to combine the ingredients. Slather it on your skin as often as desired.
| Share | Cite. virus, parasite with a noncellular structure composed mainly of nucleic acid within a protein coat. Most viruses are too small (100â2,000 Angstrom units) to be seen with the light microscope and thus must be studied by electron microscopes. Share | Cite. virus, parasite with a noncellular structure composed mainly of nucleic acid within a protein coat. Most viruses are too small (100â2,000 Angstrom units) to be seen with the light microscope and thus must be studied by electron microscopes.
Prions are infectious agents composed exclusively of a single sialoglycoprotein called PrP 27-30. They contain no nucleic acid. PrP 27-30 has a mass of 27,000 - 30,000 daltons and is composed of 145 amino acids with glycosylation at or near amino acids 181 and 197. The carboxy terminus contains a phosphatidylinositol glycolipid whose components are ethanolamine, phosphate, myo-inositol and stearic acid.