You are conducting research on a freshwater shrimp from southern China of the genus Caridina. This species of shrimp has been bred to have distinctive white and red stripes and it is kept by hobbyists in aquaria. Some individuals develop extra thick red stripes with very little white. This trait is known as the Taiwan Bee (T) phenotype. Based on your research, you hypothesize that the T trait is X linked. The XT allele is recessive to the XW (wild type) allele. (If you have trouble with super script, XT and XW are also acceptable.) Assume for this question that female shrimp are XX and males are XY.
A. Based on your hypothesis, create a complete Punnett Square for a cross between a male shrimp that lacks the T phenotype with a true-breeding T female. Your Punnett Square must include probabilities for the gametes and probabilities for each genotype in the F1 generation.
B. You then cross an F1 male and an F1 female to produce F2 offspring. Create a second complete Punnett Square that includes probabilities for the gametes and probabilities for each genotype.
C. Then, report the genotypic and phenotypic ratios expected for the F2 offspring, broken down by sex.