Pedigree Charts (Genetics 101)

A _________________ _________________is a diagram that shows the occurrence (or

presence) of a particular trait within a family - from one generation to the next.

Below is an example of a pedigree chart. Notice the shape that represents each gender.

Draw the shape that represents a female in the pedigree chart:

________________

Draw the shape that represents a male in the pedigree chart:

________________

Pedigree for “Curved Little Finger”

Notice the roman numerals (I,II,III) to the left of the “level” on the chart. What do you think

the numerals represent?

__________________________________________________________________________

How are individuals expressing (showing) the particular trait distinguished from those not

expressing the trait?

0 votes

Parent category: Education