NATS 1560 Lecture Notes - Lecture 9: Growth Hormone Treatment, Clinical Trial, Restriction Enzyme
6 Nov 2017
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These given them an advantage in changed environmental conditions, allowing them to leave more offspring. Breeding: darwinian theory of evolution: natural selection as the mechanism that account for evolutionary change. Bull semen can be stored at -200 degrees celsius a(cid:374)d the(cid:374) i(cid:374)serted i(cid:374)to the (cid:272)o(cid:449)"s reprodu(cid:272)ti(cid:448)e s(cid:455)ste(cid:373). This allo(cid:449)s for up to 400 offspring in a season compared to 30-40 naturally. Instead of breeds, refined varieties of plants are termed cultivars: cross breed: same species different traits. Hybrids: different but reu: wheat rust and canola oil were selected. Genetics and biotechnology: the laboratory manipulations of genetic material is called biotechnology, dna contains 2 ribbons of alternating sugars and phosphates with bases (purines and pyrimidines) at right angles. Complementary bases (a-g, g-a, t-c, and c-t) link up and join the 2 ribbons in a double helix. Plasmids often move out of one bacterium and into another, which gives bacteria genetic diversity, this process is called transformation.
