CONTENT BIO 5 PED/HERTY

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shockwave
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269357
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CONTENT BIO 5 PED/HERTY
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2014-04-09 12:05:41
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CONTENT BIO PED HERTY
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CONTENT BIO 5 PED/HERTY
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CONTENT BIO 5 PED/HERTY
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  1. DO UNAFFECTED PARENTS HAVE AFFECTED OFFSPRING?

    YES, THEN IT'S..........
    NO, THEN IT'S........
    • YES RECESSIVE aa
    • NO DOMINATE AA or Aa
  2. ARE BOTH SEXES AFFECTED?

    YES.....
    NO......
    YES AUTOSOMAL (CAN BE ON EITHER ONE)

    • NO SEX LINKED
    • XX FEMALE CIRCLE
    • XY MALE SQUARE
    • USUALLY X LINKED.
  3. IF TRAIT IS SEX LINKED, HOW DO YOU KNOW WHAT SEX IT CAME FROM?
    LOOK AT AFFECTED MALES AND THEN AT FATHERS. 

    IF FATHER IS INFECTED IT'S A Y LINKED TRAIT. 

    IF SON HAS IT, BUT DAD DOES NOT THEN ITS A X LINKED TRAIT, FROM MOTHER. 

    • REMEMBER:
    • XX MOM  CIRCLE
    • XY DAD   SQUARE
  4. IS IT POSSIBLE THAT THE PEDIGREE IS FOR AN AUTOSOMAL DOMINATE TRAIT?

    NO. NEITHER PARENT HAS DOMINATE TRAIT. (A_)

  5. IS IT POSSIBLE THAT THE PEDIGREE IS FOR AN AUTOSOMAL DOMINATE TRAIT?

    YES. ONE PARENT HAS THE DOMINATE GENOTYPE.
  6. IS IT POSSIBLE THAT THE PEDIGREE IS FOR AN AUTOSOMAL DOMINATE TRAIT?

    • YES. IF BOTH PARENTS ARE HETEROZYGOUS.
    • Aa * Aa
  7. IS IT POSSIBLE THAT THE PEDIGREE IS FOR AN AUTOSOMAL RECESSIVE TRAIT?
    • NO. BOTH PARENTS ARE HOMOZYGOUS RECESSIVE FOR THE TRAIT. PARENTS CAN ONLY GIVE RECESSIVE ALLELES TO OFFSPRING. 
  8. IS IT POSSIBLE THAT THE PEDIGREE IS FOR AN AUTOSOMAL DOMINATE TRAIT?

    YES. BOTH PARENTS AND ALL OFFSPRING HAVE IT.
  9. IS IT POSSIBLE THAT THE PEDIGREE IS FOR AN AUTOSOMAL DOMINATE TRAIT?

    YES. PARENTS COULD BE HETEROZYGOUS RECESSIVE (Aa * Aa).
  10. IS IT POSSIBLE THAT THE PEDIGREE IS FOR AN AUTOSOMAL RECESSIVE TRAIT?

    • YES. RECESSIVE CAN SKIP A GENERATION OR TWO. A DOMINATE WOULD SHOULD UP IN EACH GENERATION.
    • REMEMBER TO LABEL RECESSIVE (aa) AND DOMINATE (A_) THEN WORK BACKWARDS. 
  11. IS IT POSSIBLE THAT THE PEDIGREE IS AN X-LINKED RECESSIVE TRAIT?
    NO. X COMES FROM MOM (XaXa )(CIRCLE). IF THE MOM HAS AN X LINKED TRAIT THE SON WILL HAVE IT AS WELL. EVEN IF THE DAD IS XAY.
  12. IS IT POSSIBLE THAT THE PEDIGREE IS AN X-LINKED RECESSIVE TRAIT?

    YES. MOM (XaXa )(CIRCLE). IF THE MOM HAS AN X LINKED TRAIT THE SON (SQUARE) WILL HAVE IT AS WELL.
  13. IS IT POSSIBLE THAT THE PEDIGREE IS AN X-LINKED RECESSIVE TRAIT?

    YES. DAUGHTER GET XA FROM DAD. SHE WOULD BE A CARRIER. 

  14. IS IT POSSIBLE THAT THE PEDIGREE IS AN X-LINKED RECESSIVE TRAIT?

    NO. DAUGHTER GETS XA FROM DAD. SHE WOULD NEED XaXTO SHOW THE TRAIT, BUT SHE ONLY HAS ONE.
  15. IS IT POSSIBLE THAT THE PEDIGREE IS AN X-LINKED RECESSIVE TRAIT?
    YES. MOM MAY HAVE DOMINATE ALLELE, BUT SHE CAN CARRY RECESSIVE. THE FACT THAT DAD HAS IT DOES NOT MATTER, BECAUSE HE PASSES THE Y TO THE SON. 

  16. T OR F 
    THERE IS NO TRANSMISSION OF FATHER TO SON X-LINKED TRAITS.
    • TRUE. 
    • DAD PASSES THE Y.
    • X IS FROM MOM.
  17. IS IT POSSIBLE THAT THE PEDIGREE IS AN X-LINKED RECESSIVE TRAIT?

    NO. WHERE THE HELL IS THE DOMINATE ALLELE GOING TO COME FROM?
  18. YOU HAVE TWO UNAFFECTED PARENTS, BUT THEY PRODUCE 1 AFFECT OFFSPRING OUT OF 4. WHAT TYPE OF TRAIT IS IT?
    RECESSIVE. 

    REMEMBER: IF BOTH PARENTS ARE UNAFFECTED BUT PRODUCE AFFECTED OFFSPRING, IT'S A RECESSIVE TRAIT.
  19. HOW DO YOU KNOW IF THE TRAIT IS AUTOSOMAL OR SEX LINKED?
    • LOOK AND SEE ARE BOTH SEXES AFFECTED?
    • IF YES THEN IT'S AUTOSOMAL.
  20. IF YOU HAVE A FEMALE (CIRCLE) WITH THE RECESSIVE PHENOTYPE WHO HAS A FATHER OR A SON WITH THE DOMINATE PHENOTYPE WHAT DOES IT MEAN?
    IT MEANS THAT THE TRAIT CAN NOT BE X- LINKED DOMINATE TRAIT. 

    USUALLY MEANS AUTOSOMAL TRANSMITTANCE. BE CAREFUL IT MAY BE A DOMINATE OR A RECESSIVE.
  21. frequency of the dominant allele in the population.


    THE HARDY-WEINBERG LAW



    .
    P


  22. THE HARDY-WEINBERG LAW.



    frequency of the recessive allele in the population
    q


  23. HARDY-WEINBERG



     percentage of homozygous dominant individuals
    P2
  24. HARDY-WEINBERG

    percentage of homozygous recessive individuals
    q2
  25. hardy-weinberg.
    percentage of heterozygous individuals
    2PQ
  26. HETROZYGOUS * HETROZYGOUS 
    (TtYy * TtYy)
    WHAT IS THE RATIO OF OFFSPRING
    9:3:3:1
  27. Tt * Tt = WHAT RATIO OF OFFSPRING?
    3:1
  28. Tt * tt = WHAT RATIO OF OFFSPRING?
    1:1
  29. TtYy *ttyy = OFFSPRING RATIO
    1:1:1:1

    OR A 1/4 CHANCE FOR EACH GENOTYPE.
  30. SsBb * SsBb.
    HOW MANY OFFSPRING WILL HAVE SMOOTH BLK COAT ON AVERAGE. 

    SMOOTH AND BLK ARE DOM.
    9
  31. DEFINE EPISTASIS
    A gene at one locus may affect phenotypic expression of a gene at another locus.

    The B/b gene determines the pigment color (B for black and b for brown)

    The epistatic C/c gene controls whether or not any pigment will be deposited in the hair.

    A homozygous recessive cc mouse has no hair pigment and is albino regardless of its B/b genotype.

  32. DEFINE LAW OF SEGERATION
    THE DOMINATE ALLELE DETERMINES A HETEROZYGOUS INDIVIDUAL TRAIT OR PHENOTYPE.
  33. DEFINE LAW OF INDEPENDENT ASSORTMENT.
    CROSSING TRUE-BREEDING PARENTS DIFFERING IN TWO TRAITS PRODUCES DIHYBRIDS IN THE F1 GENERATION HETEROZYGOUS FOR BVOTH TRAITS, AND FOUR PHENOTYPES IN THE F2 GENERATION.

    THINK DIHYBRID CROSS
  34. In  dominance, the phenotype of  is somewhere between the phenotypes of homozygotes.
    • INCOMPLETE 
    • HETEROZYGOTES
  35. In , two dominant alleles affect the phenotype.
    CODOMINANCE
  36. Some traits exhibit  inheritance which often shows  variation.
    • POLYGENIC
    • QUANTITATIVE
  37. IF COAT COLOR IS CONTROLLED BY 3 PAIRS OF ALLELES, HOW MANY DIFFERENT SHADES ARE POSSIBLE IF ALL DOMINATE GENES HAVE THE SAME QUANTITATIVE EFFECT?


    THINK POLYGENETIC INHERITANCE.

  38. INVESTIGATORS NOTE THAT ALBINO TIGER USUALLY HAVE CROSSED EYES. WHAT 2 INHERITANCE PATTERNS CAN ACCOUNT FOR A PHENOTYPE SUCH AS THIS?
    • EPISTASIS ONE GENE EFFECTS ANOTHER. 
    • PLEIOTROPY ONE GENE EFFECTS TWO OTHER GENES.
  39. DEFINE KLINEFELTER SYNDROME
    MALE WITH UNDERDEVELOPED TESTES AND SOME BREST DEVELOPMENT. 

    THIS MALES HAS 2 OR MORE X CHROMOSOMES IN ADDITION TO THE Y CHROMOSOME. 

    THIS IS AN EXAMPLE OF A ABNORMAL SEX (AUTOSOMAL) CHROMOSOME INHERITANCE.
  40. DEFINE TRISOMY 21
    DOWN SYNDROME
  41. FEMALE  XO, WHAT SYNDROME?
    TURNER SYNDROME
  42. _______ ________ IS ALWAYS CAUSED BY NONDISCUNCTION OF CHROMOSOME 21.
    DOWN SYNDROME
  43. COLR BLINDNESS AND MUSCULAR DYSTROPHY WHAT IS THE CAUSE OF BOTH?
    X LINKED RECESSIVE DISORDERS.
  44. T OR F
    X LINKED RECESSIVE DISEASE. FOR A FEMALE TO HAVE THE CHARACTERISTIC, HER FATHER MUST ALSO HAVE IT. HER MOTHER MUST HAVE IT OR BE A CARRIER.
    TRUE
  45. X LINKED RECESSIVE. 
    AN AFFECTED SON CAN HAVE PARENTS WHO HAVE A NORMAL PHENOTYPE.
    TRUE. 

    THE CHARACTERISTIC OFTEN SKIPS A GENERATION FROM THE GRANDFATHER TO THE GRANDSON.

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