The pedigree chart below shows the individuals in a family who exhibit a certain trait. based on the information in the chart, what are the chances that a second child born to couple 4-5 in the third generation will show the trait?
a diagram of a pedigree chart. at the top of the chart are two individuals: one indicated by a green circle and one by a green square. at the next level down, the green circle is paired with a black square and the green square is paired with a black circle. from the green circle/black square pairing, there are three offspring: a green circle, a green square, and a black square. from the green square/black circle pairing, there are eight offspring: three black circles and four black squares. two of the black squares are identical twins. one of the black circles is paired with another black square. this pairing produced one green circle.
25 percent
50 percent
100 percent
0 percent