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A snapshot of the summary - Twin Research in Psychology
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Lecture 1A: Historical perspective & Mendel
This is a preview. There are 56 more flashcards available for chapter 27/10/2020
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Which childhood psychopathology is the most heritable?ADHD
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Do genes en environment always play a rol in complex traits?Yes
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What is the liability-threshold model?A model that assumes that
dichotomous disorders are due to underlying genetic liabilities that arenormally distributed. The disorder appears only when athreshold of liability is exceeded. -
What did Carl linnaeus?He created a system
that systematicallycategorize the different species he saw. -
What causes color blindness?Color blindness is caused by arecessive allele on the X chromosome. Males only have one X chromosome, so if they have one allele for color blindness on their single X chromosome, they are color blind. For females the allele must be on both of their X chromosomes. -
Explain Mendel's First law: The law of segregation.A recessive element is expressed only if both elements are recessive. While a dominant element is expressed when one or two are present.
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What is the definition of Mendelian disorders?Disorders that follow theMendelian inheritance patterns. -
What are qualitative traits?Traits that are influenced by asingle gene. These traits follow asimple pattern of inheritance and the phenotypes havedistinct categories (present/absent). Traits expression isunaffected by the environment. -
What is the Huntington's d
esease? An inherited brain disorder causing very fast worsening of the physical, cognitive and emotional self. The risk of HD in the offspring is 50% due to one dominant allele.
No cure and effective treatment.
Develops relatively old -
For which cases the 2nd Mendel's law applies?
- For genes on
different chromosomes - For
genes that are far apart on the same chromosome.
- For genes on
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The following topics are covered in this summary
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what, inheritance, recessive
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dna, expression, measure
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describe, adoption, twins
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environment, rge, sensitive
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dna, association, linkage
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expression, methylation, dna
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iq, syndrome, disability
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adhd, heritable, genetic
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schizophrenia, risk, disorder
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personality, genes, heritable
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alcohol, smoking, ace
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bmi, eating, enjoyment
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genetic, environmental, scores