Genetics sex linked problem??

In cats there is a pair of alleles for coat color which is intermediate and sex-linked. There is one gene for yellow fur and one gene for black fur, but the heterozygote has a peculiar mixture of both colour called tortoise shell. What type of kittens would resilt from a cross between a black female and a yellow male. If one offspring, when matured, is crossed to the male parent, what offspring would result?

Genetics sex linked problem??
males can not be tortoise so the following results can occur





XBXB crossed with XY(YELLOW) Y(male chromosome)





XBY 50% black males


XBXY 50 % tortoise shell females





thus the male could only mate with a tortoise shell offspring





XY(yellow) Y(chromosome) crossed with XBXY(yellow gene)


gives you





XBXY tortoise female 25 %


XBY black male 25%


XYXY yellow female 25%


XYY yellow male 25%





hope this helps impossible to corectly right this gene on the x