BIS 10 Lecture Notes - Lecture 6: Human Genome, The Sequence, Cytosine
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Some and single-stranded while others are double-stranded. Require a host to replicate and to translate and transcribe their rna. Have locks and keys that help them enter the cell. Regardless of the kind of virus, they have very similar ways to do this. They know the code and that lets them hack it. Dna is a good example of a polymer with repeating units. Principles of inheritance established by gregory mendel (1865) using pea plant traits. Why peas as a model system: he could control their fertilization by transferring pollen with a small paintbrush to self- fertilize and cross-fertilize. Easil(cid:455) defi(cid:374)ed traits (cid:894)height, pea (cid:272)olor, seed shape et(cid:272). (cid:895). Characteristic patterns of trait inheritance: traits were not blended. Johann friedrich miescher circa 1870: worked in a hospital with white blood cells. When he added salt and an alkaline solution he precipitated a substance high in phosphorus. He postulated that it was the storehouse for the phosphorous atom.