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Slide 19

Sex linked Inheritance in Drosophila

Sex linked Inheritance in Drosophila

Slide 20

Genetics

Slide 21

General Pedigree refer to NOB2 (new ed) pages 328-332

General Pedigree refer to NOB2 (new ed) pages 328-332

Slide 22

Autosomal Dominant Pedigree

Autosomal Dominant Pedigree

Look for:

Trait in every generation

Once leaves the pedigree does not return

Every person with the trait must have a parent with the trait

Males and females equally affected

Slide 23

Autosomal dominant pedigree

Autosomal dominant pedigree

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Autosomal Dominant Pedigree

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Autosomal Recessive Pedigree

Autosomal Recessive Pedigree

Look for:

Skips in generation

Unaffected parents can have affected children

Affected person must be homozygous

Males and females affected equally

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Autosomal recessive

Autosomal recessive

Slide 27

Autosomal recessive

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Sex linked Dominant pedigrees

Sex linked Dominant pedigrees

Look for:

More males being affected

Affected males passing onto all daughter (dominant) and none of his sons

Every affected person must have an affected parent

Slide 29

Sex linked recessive pedigrees

Sex linked recessive pedigrees

More ales being affected

Affected female will pass onto all her sons

Affected male will pass to daughters who will be a carrier (unless mother also affected)

Unaffected father and carrier mother can produce affected sons

Slide 30

Autosomal recessive

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Sex linked recessive

Sex linked recessive

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Autosomal recessive

Slide 33

Questions to complete

Questions to complete

Complete the following:

Biochallenge pg 334, ques 2

Review ques pgs 335-338

Ques 6,7,8, 9, 10, 11, 12, 13, 14,

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