Pedigrees

Question 1

what are the 3 modes of inheritance

Answer 1

1. autosomal dominant trait
2. autosomal recessive trait
3. sex linked recessive

Question 2

1. Autosomal dominant: how to determine

Answer 2

-both males and females equally affected
-an affected individual must have at least ONE affected parent
-the captial allele will be for the trait then, and lowercase for normal

Question 3

2. autosomal recessive: how to determine

Answer 3

-both males and females equally affected
-2 unaffected parents have affected offspring (meaning that its a recessive)
-lowercase allele will represent trait and captial will be normal

Question 4

3. Sex linked recessive: how to determine
   -for dominant tho, how to determine?

Answer 4

-mostly males affected
-use the X and Y alleles with small letters to represent the condition

-mostly affected daughters