Mendelian Genetics In Humans Ap Biology Worksheet (Page 5 of 6) in pdf

Mendelian Genetics In Humans Ap Biology Worksheet Page 5

The pedigree below traces brachydactyly, a condition in which fingers are

abnormally short, through several generations of a family. Those individuals

afflicted with brachydactyly are shaded. Use this pedigree to answer the

questions that follow.

Examine the children produced by individuals 6 & 7 in Generation II. How do

you explain the fact that 9 is not brachydactyly?

_____________________________________________________________

Is brachydactyly a dominant or recessive disorder?_____________________

What is the relationship between individuals 2 & 3 in Generation II?

____________________________________________________________

Identify the inherited disorder described below.

Recessively inherited disorder in which a defective protein causes the

build up of chloride ions in cells, the osmotic uptake of water from the

surrounding mucus, and results in a very thick, viscous mucus. This

thick mucus accumulates in the pancreas, lungs, & digestive tract.

Disorder:_________________________________________________

Heredity Activity #4 page 5

Mendelian Genetics In Humans Ap Biology Worksheet Page 5