Biology, 23.06.2019 00:00 harleyy6802
Darwin’s studies of finches on the galápagos islands suggest that the finches’ differences in beak structure were most likely directly due to:
Answers: 1
Biology, 20.06.2019 18:02, mazielynn84
You hate the smell of mercaptoethanol. since there are no disulfide bonds in intracellular proteins, you have convinced yourself that it is not necessary to treat a cytoplasmic homogenate with mercaptoethanol prior to sds-page. you heat a sample of your homogenate in sds and subject it to electrophoresis. much to your surprise, your gel looks horrible; it is an ugly smear! you show your results to your friend who is a chemistry major, and she suggests that you treat your sample with n-ethylmaleimide (nem), which reacts with free sulfhydryls. you run another sample of your cytoplasmic homogenate after treatment with nem and sds. now the gel looks perfect! if intracellular proteins don't have disulfide bonds (and they don't) why didn't your original scheme work? and how does treatment with nem correct the problem?
Answers: 1
Biology, 22.06.2019 00:00, nicolemaefahey
Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating
Answers: 2
Biology, 22.06.2019 07:50, kailahgranger
In each transformation of energy , some energy what?
Answers: 1
Darwin’s studies of finches on the galápagos islands suggest that the finches’ differences in beak s...
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