bio 1001 lab #21

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msc_nya
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47434
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bio 1001 lab #21
Updated:
2010-11-04 21:46:11
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lab #21 Human Genetics
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  1. turner syndrome affects which gender
    females
  2. trisomy 21 is also known as
    down syndrome
  3. trisomy 18 is known as
    edward syndrome
  4. XO is known as
    turner syndrom
  5. XXY is known as
    klinefelter syndrome
  6. XXX is known as
    metafemale
  7. XYY is known as
    jacob syndrome
  8. turner syndrome, klinefelter syndrome, metafemale, and jacob syndrome are known as _________ __________ disorders
    sex chromosomal
  9. down syndrome and edward syndrome are known as ______ _______ disorders
    autosomal chromosomal
  10. a dominant allele is assigned a _____ letter while a recessive allele is given the same letter ________
    capital lowercased
  11. telles the alleles of the individual
    genotype
  12. describes the appearance of the individual
    phenotype
  13. dominant or recessive:

    widow's peak
    dominant
  14. dominant or recessive:

    straight hairline
    recessive
  15. dominant or recessive:

    unattached earlobes
    dominant
  16. dominant or recessive:

    attached earlobes
    recessive
  17. dominant or recessive:

    freckles
    dominant
  18. dominant or recessive:

    no freckles
    recessive
  19. dominant or recessive:

    hair on back of hand
    dominant
  20. dominant or recessive:

    no hair on back of hand
    recessive
  21. dominant or recessive:

    hitchhiker's thumb
    dominant
  22. dominant or recessive:

    no hitchhiker's thumb
    recessive
  23. dominant or recessive:

    bent little finger
    dominant
  24. dominant or recessive:

    straight little finger
    recessive
  25. dominant or recessive:

    left thumb over right
    dominant
  26. dominant or recessive:

    right thumb over left
    recessive
  27. the sex chromosomes carry genes that affect traits other than the individual's sex. these are called
    sex-linked genes
  28. most sex-linked genes have alleles on the x chromosome and are called
    x-linked genes
  29. x-linked genes are most often dominant or recessive
    recessive
  30. ______ ______ is an x-linked, recessive trait
  31. a ______ shows the inheritance of a genetic dosorder within a family and can help determine whether any particular individual has an allele for that disorder
    pedigree
  32. what can be drawn out to determine the chances of a couple producing a child affected by a genetic disorder
    a punett square
  33. one or both parents are affected and many of the children are affected. what is the inheritance pattern on a pedigree?
    autosomal dominant
  34. neither parent is affected, few of the children are affected. what inheritance pattern is shown on a pedigree?
    autosomal recessive
  35. trait is primarily found in males and is often passed from grandfather to grandsom. what inheritance pattern is shown on a pedigree?
    x-linked recessive
  36. what term refers to a micrograph of paired chromosomes arranged by size and shape
    karyotype
  37. what pair of chromosomes is not homologous in a normal male karyotype
    23rd pair
  38. what syndrom is inherited when an egg carrying two x chromosomes is fertilized by a sperm carrying one y chromosome
    klinefelter
  39. what usual meiotic even leads to the syndrome xxy
    nondisjunction
  40. what does a genetic counselor construct to show the inheritance pattern of a genetic disorder within a family
    pedigree chart
  41. the alleles of which parent, regardless of the phenotype, determine color blindness in a son
    mother
  42. if only males are affected in a pedigre, what is the likely inheritance pattern for the trait?
    x-linked recessive
  43. if the parents are not affected and a child is affected, what is the inheritance pattern?
    autosomal recessive
  44. dominant or recessive:

    ptc tasting
    dominant
  45. dominant or recessive:

    ptc non-tasting
    recessive

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