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Cow DNA: How DNA Controls the Workings of the Cell
Cow DNA: How DNA Controls the Workings of the Cell

... this case, the sequence contains the gene to make the protein insulin. Insulin is necessary for the uptake of sugar from the blood. Without insulin, a person cannot use digest sugars the same way others can, and they have a disease called diabetes. Instructions: 1. Using the DNA sequence, make a com ...
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... annually of smallpox, and one third of the survivors went blind (4). The symptoms of smallpox, or the “speckled monster” as it was known in 18th-century England, appeared suddenly and the sequelae were devastating. The case-fatality rate varied from 20% to 60% and left most survivors with disfigurin ...
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... genetics in 1866 but largely went unrecognized until 1900, which was long after his death. He acquired his understanding of genetics mostly through pea plant breeding experiments. A theory that inherited traits blend from generation to generation. Most of the leading scientists in the 19th century a ...
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... • Female humans inherit two X chromosomes; only one is active in each cell. • The other X chromosome becomes inactivated during embryogenesis via the process of X inactivation – Also call lyonization. • The inactivated X is called a Barr Body. • Selection of which X will be inactivated is random. • ...
Hypertrichosis
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... Some people do not have the normal complement of sex chromosomes (mistake in meiosis) One X -> woman with Turner’s Syndrome Trisomy: XXX -> Woman, infertile XXY -> Klinefelter’s Syndrome XYY -> Super aggressive men? NO, flawed study Can say: any deviation from normal number of sex cells is very bad ...
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PROPOSED CURRICULUM IN ZOOLOGY FOR B.Sc., (UG) VI

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Microevolution

Microevolution is the change in allele frequencies that occur over time within a population. This change is due to four different processes: mutation, selection (natural and artificial), gene flow, and genetic drift. This change happens over a relatively short (in evolutionary terms) amount of time compared to the changes termed 'macroevolution' which is where greater differences in the population occur.Population genetics is the branch of biology that provides the mathematical structure for the study of the process of microevolution. Ecological genetics concerns itself with observing microevolution in the wild. Typically, observable instances of evolution are examples of microevolution; for example, bacterial strains that have antibiotic resistance.Microevolution over time leads to speciation or the appearance of novel structure, sometimes classified as macroevolution. Macro and microevolution describe fundamentally identical processes on different scales.
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