Assume that the normal spots(XN) are dominant, sex-linked trait and that dark spots are recessive?

Clouded leopards are a medium-sized, endangered species of cat, living in the very wet cloud forests of Central America. Assume that the normal spots(XN) are dominant, sex-linked trait and that dark spots are recessive. You cross a male with dark spots and a female with normal spots. She has four cubs and, conveniently, two are male and two are female. One each of the male and female cubs has normal spots and one each has dark spots.





a. What is the genotype of the mother





b. Suppose a few years later, you cross the female cub that has normal spots with a male that also has normal spots. How many of each of the following genotypes will be found in the cubs(assume 4 cubs in the litter)





XNXN


XNXn


XnXn


XNY


XnY





c) Will any of the cubs from the latest cross have dark spots?

Assume that the normal spots(XN) are dominant, sex-linked trait and that dark spots are recessive?
1-


progeny


XNXN


XNY


XnXn


XnY





it means that the mother is: XNXn, otherwise, all the female progeny would had normal spots





b- all except XnXn





c-yeahh, one male.

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