When Interpreting a pedigree chart to determine the pattern of inheritance for a specific trait...

a A shaded circle represents a male with the trait.
b A shaded circle represents a female with the trait.
c A shaded circle represents a male without the trait.
d A shaded circle represents a female without the trait.

1 answer

In a pedigree chart, the symbols are used to represent individuals and their traits. The correct interpretation among your options is:

b: A shaded circle represents a female with the trait.

To clarify further:

  • A shaded circle represents a female with the trait.
  • A shaded square represents a male with the trait.
  • An unshaded circle represents a female without the trait.
  • An unshaded square represents a male without the trait.