The pedigree traces red-green color blindness. Which family members have red-green color blindness? Sam, Tim, Bella, and Joshua Lisa and Monica Ben, Jenny, Mike, Carol, Katie, and Chris Sam, Joshua, and Tim

More information is needed to give a definitive answer, but here's what I can tell you from the information provided: Since color blindness is an X-linked trait, there is a much higher probability for male color blindness than female colorblindness (males only need one allele, females need two). So, my best guess is that the males are color blind and the females are not.

Sam, Tim, Bella, and Joshua