Mendel Genetics Flashcards

1
Q

What is the most common heritable disorder in humans?

A

Tooth agenesis (4-7%, if 3rd molars in included=20%)

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2
Q

What are the Three laws of mendelian genetics?

A

1-Law of Segregation
2-Law of Independent Assortment
3-Law of Dominance

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3
Q

Blood type is a good example of what?

A

Co-dominance (4 possible genotypes A,B,AB,O)

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4
Q

Snap dragon color is a good example of what?

A

incomplete dominance (Red or white alleles, two together result in third phenotype, pink)

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5
Q

Calico cats are a good example of what?

A

Mosaicism (different cells have different genotypes)

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6
Q

If the son is ALWAYS affected the trait is considered to be?

A

Y-linked trait

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7
Q

If a trait affects 50% sons and 50% daughters it is likely what?

A

X-linked dominant

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8
Q

If a trait affects only 50% of the sons, daughters unaffected it is likely what?

A

X-linked recessive (daughters can be carriers but unaffected X dad dominates phenotypically)

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