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To what extent would you argue that Stephen
To what extent would you argue that Stephen

... Read the following article that originally appeared in The Independent newspaper. You will need to refer to it when you complete the extended question task. STEPHEN "Tony" Mobley has all the attributes of a natural born killer. Nobody could blame his upbringing - he came from an affluent, white, mid ...
ALLELE Alternative form of a gene. CHROMOSOMES DOMINANT
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Chapter 18 - Population genetics
Chapter 18 - Population genetics

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Chapter 6 Polygenic Inheritance

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Teacher`s Guide for “Heredity” CT State Standards National Science

... 1. Heredity
is
the
passing
of
traits
from
parents
to
offspring.
All
 genes
are
inherited
in
pairs.
It
is
these
genes
that
control
the
 expression
of
traits
in
offspring.

The
song
uses
examples
such
as
 eye
color,
freckles,
and
tongue
folding.


 2. The
song
mentions
“map
it
on
your
pedigree.”
Pedig ...
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Lecture 3: Resemblance Between Relatives

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Natural Selection and Evidence to Support Evolution

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EDITORIAL Dissecting Complex Genetic Diseases: Promises and
EDITORIAL Dissecting Complex Genetic Diseases: Promises and

... In contrast to the situation in single-gene defects, most susceptibility genes exert only a minor individual effect on the disease itself. Nevertheless, since multifactorial diseases are much more prevalent than single-gene diseases, the minor effects of susceptibility genes on common diseases are t ...
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... Individuals in a population with one extreme trait have higher fitness than the individuals with the average trait  One extreme is selected for  The average trait and the other extreme trait are selected against ...
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Genetics - Is there a role in clinical practice?

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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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