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Chapter 4
Chapter 4

... f. Hybrid-Cross Model show in the Punnett square at the right the results of a ___ ___ hybrid cross of the offspring with ____________________ genotypes of Yy g. The possible offspring from this cross are ______ different genotypes which are ____, ____, ____. These result in only two different phen ...
Science 9 Unit A Review GCCHS 1) Important Vocabulary
Science 9 Unit A Review GCCHS 1) Important Vocabulary

... narrow niche This is a niche that is inhabited by a specialist. It includes a limited location and role in the environment. A kola bear has this type of niche. dominant trait This is an inherited trait that will always show up in the offspring in both the homozygous and heterozygous states. Brown ey ...
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Hardy-Weinberg Genetic Equilibrium
Hardy-Weinberg Genetic Equilibrium

... Each line represents a different population. Each starts with the same number of allele A. over time the number of individuals with that allele changes. If a population is small enough over several generation the allele will either be 0 or 100% present. ...
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Genetics

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... Some genes have different forms, these are known as alleles. Example: Take hair color as an example. The alleles for red hair are different to the alleles for brown hair, and these are different to the alleles for blond hair. The allele combinations that you possess are responsible for your unique m ...
PPT File
PPT File

... • It is most common in small populations. • A population bottleneck can lead to genetic drift. – It occurs when an event drastically reduces population size. – The bottleneck effect is genetic drift that occurs after a bottleneck event. ...
Chapter 4 Pregnancy
Chapter 4 Pregnancy

... fetus. Medical term used to describe the unborn baby in the fetal stage of development (week 9 until the end of pregnancy). fraternal. Term used to describe children from multiple pregnancies who develop from two or more fertilized ova and differ in genetic makeup. genetic factors. Traits that are p ...
PowerPoint Presentation - Knockout gene affects parental care
PowerPoint Presentation - Knockout gene affects parental care

... • Rover allele is favored in crowded environments while sitter allele is favored at low densities • Expression of rover can be altered by restricting food • Located on chr 2, codes for an enzyme (cyclic GMP-dependent kinase) involved in cell signaling that influences how larvae respond to food quali ...
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The Bio tech Century - The CS Lewis Study Group

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Analytical Essay #3 (1)
Analytical Essay #3 (1)

... include AIDS, gonorrhea, syphilis, and leprosy. Those under “relevant mental diseases” include schizophrenia, manic-depressive psychosis, and still others. If a couple is found to have any of these categorized diseases, the state will not recognize a desired marriage unless the couple cooperatively ...
Microevolution: How Does a Population Evolve?
Microevolution: How Does a Population Evolve?

... • Random drift or genetic drift is a change in the allele frequency due to random events. This is more likely in a small pop. • Founder effect –a small subset of a population founds a new population. • Bottleneck effect – the population is reduced to a few individuals by some random disaster or hars ...
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GENE 313: Medical Genetics

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PPT

...  We know where 85% of genes are in the sequence.  We don’t know where the other 15% are because we ...
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Intro to Genetics

... passed from parent to offspring  Heredity: - passing of traits from parent to offspring  Genetics: - study of heredity  Purebred:- one that always produces offspring with the same form of a trait as the parent. (homozygous) • Hybrid:- has both forms of a trait ...
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... 1. A one-eyed purple people eater is crossed with a two eyed purple people eater. All of their offspring have two eyes. Which trait is dominant? 2. If you use the letter E for this gene. What is the genotype of the offspring? Are these offspring the F1 or F2 generation? ...
Heredity Quiz 2016 Self-Testing Guide DUE day of quiz! ANSWERS
Heredity Quiz 2016 Self-Testing Guide DUE day of quiz! ANSWERS

... Mendel is credited with discovering the science of heredity based on many, many examples of certain variations of traits on plants that were seen 3 times more often than other variations. This 3:1 ratio shows that dominant variations occur approximately three times more often than recessive variatio ...
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Milestones - Fondazione Diritti Genetici

... pharmacogenetics is pharmacogenomics, which is based on the discovery that genetic polymorphisms have the potential to affect a drug’s mechanism, including its efficacy. One potential application of pharmacogenomics is drug development. ...
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11.1 Mendel and the Garden Pea 11.1 Mendel and the

... #23 pair are the sex chromosomes females are designated XX while males are designated XY the genes on the Y chromosome determine “maleness” Sometimes er rors occur during meiosis Nondisjunction: failure of chromosome to separate during meiosis I or meiosis II leads to aneuploidy: abnl chromosome # m ...
Figure S1 - Genetics
Figure S1 - Genetics

... A.    The  F2  with  show  increased  hybrid  vigor  over  the  F1.   B.    The  F2  will  show  a  decrease  in  heterozygosity  from  the  F1.   C.    The  F2  may  exhibit  inbreeding  depression.   D.    The  variance  of ...
File - hs science @ cchs
File - hs science @ cchs

... population bottleneck humans inflicted on them in the 1890s. Hunting reduced their population size to as few as 20 individuals at the end of the 19th century. Their population has since rebounded to over 30,000 but their genes still carry the marks of this bottleneck. They have much less genetic var ...
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Heritability of IQ

Research on heritability of IQ infers from the similarity of IQ in closely related persons the proportion of variance of IQ among individuals in a study population that is associated with genetic variation within that population. This provides a maximum estimate of genetic versus environmental influence for phenotypic variation in IQ in that population. ""Heritability"", in this sense, ""refers to the genetic contribution to variance within a population and in a specific environment"". There has been significant controversy in the academic community about the heritability of IQ since research on the issue began in the late nineteenth century. Intelligence in the normal range is a polygenic trait. However, certain single gene genetic disorders can severely affect intelligence, with phenylketonuria as an example.Estimates in the academic research of the heritability of IQ have varied from below 0.5 to a high of 0.8 (where 1.0 indicates that monozygotic twins have no variance in IQ and 0 indicates that their IQs are completely uncorrelated). Some studies have found that heritability is lower in families of low socioeconomic status. IQ heritability increases during early childhood, but it is unclear whether it stabilizes thereafter. A 1996 statement by the American Psychological Association gave about 0.45 for children and about .75 during and after adolescence. A 2004 meta-analysis of reports in Current Directions in Psychological Science gave an overall estimate of around 0.85 for 18-year-olds and older. The general figure for heritability of IQ is about 0.5 across multiple studies in varying populations. Recent studies suggest that family environment (i.e., upbringing) has negligible long-lasting effects upon adult IQ.
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