Mendelian Genetics

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Mendelian Genetics

• Concept 10.2

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Hybrids

• The offspring (F1) from 2 different,
  true-breeding varieties.
• Parents are (P)

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Hybrid Crosses

• F1 self-fertilize to produce the F2
• F stands for filial (Latin for son)

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Monohybrid Cross

• A cross involving one (mono) trait.
• Punnett square with 4 squares

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Pea Plant Traits (Dom/Rec)

• Flower Color
• Purple/White
• Flower Position
• Axial/Terminal
• Seed Color
• Yellow/Green

• Seed Shape
• Round/Wrinkled
• Pod Shape
• Inflated/Constricted
• Pod Color
• Green/Yellow
• Stem Length
• Tall/Short

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Must KNOW Terminology

• Alleles Alternate for of a gene (Use letters to
  represent AA, Aa, aa)
• Homozygous Individual w/ 2 of the same alleles
  (ex. AA or aa)
• Heterozygous Individual w/ 2 different alleles
  (ex. Aa)

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Dominant

• Individuals can be AA or Aa in terms of the
  dominant characteristic

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Recessive

• Individuals must be aa to have the recessive
  characteristic.

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Cross the following

• PP x pp
• PP x Pp
• Pp x pp
• Pp x Pp

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Cross the following

• Homozygous Dominant Purple
• x
• Homozygous
• Recessive White

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Cross the following

• Heterozygote
• x
• Homozygous Purple

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Cross the following

• For flower color Homozygous recessive
• x
• Heterozygote