developmental psych

Home > Preview

The flashcards below were created by user Anonymous on FreezingBlue Flashcards.

  1. allele
    a third of genes have 2 or more different forms
  2. dominant allele
    the allele that, if present, gets expressed
  3. recessive allele
    the allele thats not expressed if a dominant allele is present
  4. homozygous
    a person inherits either 2 of the same allele
  5. heterozygous
    a person inherits different forms of a gene from parents
  6. ability to roll your tongue
    dominant trait
  7. having straight hair
    recessive trait
  8. genetic expression
    • -a single gene can affect multiple traits
    • - both alleles can be fully expressed or blended
    • - most behavioral traits like shyness involve contributions of several genes
  9. behavioral genetics
    study of the effects of hereditary behavior and psychological characteristics
  10. polygenic traits
  11. mendelian inheritance patterns
    each allele from both parents gets distrubuted resulting in 4 combinations (Bb and Bb = BB, Bb, Bb, and bb)
  12. PKU phlenylketonuira
    recessive disorder in which phenylalanine cannot be metabolized, and with a normal diet, mental retardation results.
  13. hemophilia
    X linked disorder in which blood does not clot normally
  14. red green color blindness
    x linked disorder
  15. fragile x syndrome
    x linked disorder involving a mental retardation
  16. x linked disorders
    linked to the x chromosome, thus expressed more often in men
  17. down syndrome
  18. symptoms of down syndrome (4 of them)
    • - distinctive facial features
    • - slow motor development
    • - some degree of mental retardation
    • - mild temperment
  19. turners syndrome
    absence of one X chromosome in female

    • - tend to have broad chests, short, webbing of the neck & drooping eyelids
    • - ovaries fail to develop
    • - deficiencies in spatial perception
  20. XYY syndrome
    an extra Y chromosome in males

    - above average stature, speech delay, learning disabilities, behavior disturbance
  21. klinefelters syndrome
    an extra x chromosome in males

    - somewhat feminized body build, incomplete development of sex characteristics at puberty
  22. human genome project
    scientific mission to create a directory of the genes that can be used ot answer questions such as what specific genes do and how they work
  23. human genome project challenges
    • - discover the hereditary genes that contributes to common diseases such as diabetes, heart diseases, mental illness and cancer
    • - develop new approaches to the prevention and treatment of disease
    • - discover interaction between the susceptibility genes and their interaction with the environment
    • - promote early detection of the genetic diseases
    • - develop technology that can sequence entire genome of any person for less than $1,000.

Card Set Information

developmental psych
2012-03-09 18:13:12
developmental psych

Show Answers:

What would you like to do?

Home > Flashcards > Print Preview