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doc - Genome: The Secret of How Life Works
doc - Genome: The Secret of How Life Works

... working in the field of genetics who are willing to speak to the class, or provide their point of view on rights to genetic information; or, adults willing to role-play these points-of-view. ...
Human Genetic Mutations
Human Genetic Mutations

... • This condition is called ________________________. • Trisomy 21 = Individual has _____ copies of chromosome # ________ Chromosomal Mutations • Most chromosomal mutations are ______________________ • If the fetus survives: Tend to cause wide-spread abnormalities • Example: Down Syndrome • Down Synd ...
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What is Evolution?

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440speciation2a

... dropping into the leaf litter keeps it close to host plant. Other species, even if they used the plant, would have eggs dispersed from the host plant. That's bad for butterflies, 'cuz caterpillars don't disperse too far... ...
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Why Does the Cheetah Lack Genetic Diversity

... blood, you would see proteins also vary between each person, just like hair color. When you look at the proteins in the blood of cheetahs, they are very similar; it looks as if they are identical twins of one another, meaning they are closely related. The study of biological inheritance is called "g ...
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... Oxidative stress influences DNA and other biomolecules damage via oxidative changes to their chemical structure. These changes are believed to increase the risk of cancer, heart disease and aging processes. It has been demonstrated that antioxidants such as ascorbic acid, tocopherols and flavonoids ...
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... 1) The population must be large enough to make it highly unlikely that chance alone could significantly alter allelic frequencies. 2) Mutations must not occur (or else there must be mutational equilibrium). 3) There must be no immigration or emigration. 4) Reproduction must be totally random. Since ...
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... DNA technology is to A.) Provide a vector for the transfer of recombinant DNA. B.) Produce cDNA from mRNA. C.) Produce a cut (usually staggered) at specific recognition sequences on DNA. D.) Reseal “sticky ends” after basepairing of complementary bases. E.) Digest DNA into single strands that can hy ...
< 1 ... 1565 1566 1567 1568 1569 1570 1571 1572 1573 ... 1937 >

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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