Biology Forums - Study Force

5. You have three dice: one red (R), one green (G),
and one blue (B). When all three dice are rolled at the same time, calculate the probability of the
following outcomes:
a. 6(R) 6(G) 6(B)
b. 6(R) 5(G) 6(B)
c. 6(R) 5(G) 4(B)
d. No sixes at all
e. 2 sixes and 1 five on any dice
f. 3 sixes or 3 fives
g. The same number on all dice
h. A different number on all dice

54. In humans, color vision depends on genes encoding
three pigments. The R (red pigment) and G (green
pigment) genes are on the X chromosome, whereas
the B (blue pigment) gene is autosomal. A mutation
in any one of these genes can cause colorblindness.
Suppose that a colorblind man married a woman
with normal color vision. All their sons were colorblind,
and all their daughters were normal. Specifywhom had this condition, and several daughters, all
of whom were normal. For four generations, this
condition was passed from father to son. From this
evidence, what can you postulate about the location
of the gene?

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