Mendelian Genetics 1 Lab

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Mendelian Genetics (1) Lab

• Common Inheritance Patterns Material Covered in
  the Laboratory Session

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The Following Topics Are Covered in the Next
Several Slides

• Outline and basic terms
• Monohybrid cross
• Test cross
• Incomplete dominance
• Dihybrid cross
• Multiple alleles
• Sex determination
• Sex linked traits

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(No Transcript)
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Basic Genetic Terms
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Basic Genetic Terms
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Monohybrid Cross
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Conducting a Test Cross
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Incomplete Dominance
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A Dihybrid Cross
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Multiple Alleles
Note that Variation is Continuous rather than
Discontinuous
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Sex Determination in Humans
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Inheritance of a Sex-Linked Trait
Red-Green Colorblindness
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Additional Examples Follow
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A Monohybrid Cross
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(Multiple Alleles)
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Sex Determination in Humans
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Sex-Linked Inheritance of Color Blindness
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Review of Previous Example on Sex-Linked Traits

• Ex. A (left)
• Female is a carrier
• Male is normal
• Female offspring 1 normal and 1 carrier
• Male offspring 1 normal and 1 colorblind
• Your conclusions?

• Ex. B. (right)
• Female is carrier
• Male is colorblind
• Female offspring 1 carrier and 1 colorblind
• Male offspring 1 normal and 1 colorblind
• Your conclusions?

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Inheritance of Eye Color in Drosophila
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Be Sure to Complete the Genetics Problems in Your
Lab Manual As Practice For the Next Exam
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End