Pedigree_Worksheet - Pedigree Worksheet Name:Queenelizabeth Perkins Period:4 Date Interpreting a Human Pedigree Use the pedigree below to answer 1-5 1

# Pedigree_Worksheet - Pedigree Worksheet Name:Queenelizabeth...

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Pedigree Worksheet Name : Queenelizabeth Perkins Period: 4 Date: 4-1-20 Interpreting a Human Pedigree Use the pedigree below to answer 1-5 1. In a pedigree, a square represents male. If it is darkened he has hemophilia ; if clear, he had normal blood clotting. a. How many males are there? 8 b. How many males have hemophilia? 3 2. A circle represents a female. If it is darkened , she has hemophilia ; if open she is normal. a. How many females are there? 8 b. How many females have hemophilia? 2 3. A marriage is indicated by a horizontal line connecting a circle to a square. a. How many marriages are there? 3 4. A line perpendicular to a marriage line indicates the offspring. If the line ends with either a circle or a square, the couple has only one child. However, if the line is connected to another horizontal line, then several children are produced, each indicated by a short vertical line connected to the horizontal line. The first child born appears to the left and the last born to the right. a. How many children did the first couple (couple in row I) have? 2 b. How many children did the third couple (couple in row III) have? 7 5. Level I represent the first generation, level II represents the second generation.

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