Joe is color blind. Both his mother and his father have normal vision, but his mother’s father (Joe’s maternal grandfather) is color blind. All Joe’s other grandparents have normal color vision. Joe has three sisters— Patty, Betsy, and Lora—all with normal color vision. Joe’s oldest sister, Patty, is married to a man with normal color vision; they have two children, a 9-year-old color-blind boy and a 4-year-old girl with normal color vision. Q. If Joe marries a woman who is a carrier of the color-blind allele, what is the probability that their first child will be a color-blind boy?

Color blindness is typically an inherited genetic condition in which individuals have a decreased ability to see color or differences in color. Color blindness only occurs in individuals who have two recessive alleles for the condition. Normal color vision is due to a dominant allele (C) Color blindness is due to the recessive allele (c) a) If Susan is homozygous for normal vision, and Matt is homozygous for color blindness, what is the likelihood (in percentage) that their son Alex will have color blindness? Perform a Punnett Square (either below or by hand on paper) to find the probability. Provide your answer in a full sentence. If you did the Punnett Square by hand, attach your photo to the next question.

Sex-Linked: Cross a colorblind woman with a normal vision man and determine phenotype ratio. XX- normal female XY normal male X*X carrier female X*Y color blind male X*X* colorblind female

HITCHHIKER'S THUMB: The distal (last) joint of the thumb can be bent back to forma 45 degree angle with the proximal joint (attached to your hand) if you arehomozygous recessive (hh) for this trait.Michael has a well-developed hitchhikers thumb, but neither of his parents show thetrait. If his parents have another child, what is the probability that he/she will alsohave a hitchhikers thumb?