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Non Mendelan Genetics Foldable

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Non Mendelan Genetics Foldable Fold your paper so you have 2 flaps opposite each other Next cut four divisions on each side. You should have a total of 8, four on ... – PowerPoint PPT presentation

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Title: Non Mendelan Genetics Foldable


1
Non Mendelan Genetics Foldable
2
Fold your paper so you have 2 flaps opposite each
other
  • Next cut four divisions on each side. You should
    have a total of 8, four on each side.
  • Label the left side CoDominance, Incomplete
    dominance, Polygenetic, Gametes,
  • Label the first 2 flaps on the right side
    Multiple alleles, label the 3rd flap autosomes
    and the 4th flap Sex linked

3
Incomplete Dominance
  • On the first flap write
  • Heterozygous phenotype is halfway in between the
    two homozygous phenotypes
  • Red flower x white flower pink flower!!!
  • RR X WW RW
  • Cut out the picture Color the flowers according
    to the key above and glue down under flap

4
Codominance
  • Under the codominance flap write
  • Both alleles contribute to phenotype
  • Normal blood cells x Sickle blood cells both
    normal and sickle cell blood.
  • In this case it would be a positive change.
    People who are carriers for sickle cell disease
    are protected against Malaria!
  • Find the sickle cell picture color it and glue it
    under the codominance flap.

5
Multiple Alleles
  • Under the first flap write
  • Many genes have MORE than two alleles
  • Rabbit coat color (C, c, cch, ch)
  • Human blood type (A, B, O)
  • Blood type is written with the letter I to
    represent A and B which are codominate and i to
    represent O which is resessive.
  • Find the blood type picture and color each row a
    different color then glue it down under your
    multiple allele flap.

6
Polygenic Traits
  • Under the polygenic flap write
  • Traits produced by interaction of more than one
    gene
  • Human skin color and height
  • Always makes a bell shaped curve.
  • Find the picture of polygenic traits, draw in the
    bell shaped curve and glue it down under your flap

7
Gametes
  • Write the following under the gamete flap
  • Gametes are sex cells, they have ½ the number of
    chromosomes as autosomes (23 instead of 46)
  • Male gamete sperm
  • Female gamete egg
  • The gene for sex if on the Y chromosome so the
    Male decides the sex of the baby. 50 to 50
    chance of having a male or female
  • Find the picture and glue it under the flap

8
Autosomes
  • Under the flap write
  • The other 22 pair of chromosomes
  • Carry information about everything else except
    sex
  • Autosomal mutations are not passed to offspring.
    Example skin cancer
  • Find picture cut it out and glue it under the
    flap.

9
Sex linked disorders
  • Under the flap write
  • Sex link traits are traits carried on the X
    chromosome.
  • Males have a 50 percent chance of inheriting a
    sex linked disorder. Females have a 25 percent
    chance. Why?
  • Examples color blindness, hemophilia, dunchee
    muscular distrophy
  • Find the sex linked punnet square color it and
    cut it out and glue it under the flap.
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