Use the pedigree on the right to determine which of the following are possible genotypes for Irene. XHY

XHXh

XhY

XHXH

What chance does Irene have of being a carrier? Express your answer in a percentage.

50

%

A pedigree is shown for John and Ann. John is a square and Ann is a half-filled circle. John and Ann have 4 Children. Marie is a half-filled circle, Fred is a filled square, Jack is an empty square, and Irene is a question mark.

the answers are a and c

well, i believe that the answer is 2. : 3

it should be d) transitional fossils.

they show the gradualism of evolution throughout a period of time

in addition to being able to metabolize, grow, digest food, and excrete wastes, what other functions must an organism perform if it is to survive? survival also depends on the ability to maintain one's boundaries, to move, to respond to stimuli, and to reproduce. oxygen is a survival need.