Principles of Inheritance and Variation Question 73
73. Probability of four sons to a couple is
[2001]
(a) $\frac{1}{4}$
(b) $\frac{1}{8}$
(c) $\frac{1}{16}$
(d) $\frac{1}{32}$
Show Answer
Answer : c
Hints & Solution
(c)
| (c) | $(0^{*})$ | |
|---|---|---|
| Parents | $x$ | |
| Offspring | $XX XX$ daughters |
XY XY sons |
| Probability of son $=\frac{2}{4}=\frac{1}{2}$ | ||
| Probability of four son $=(\frac{1}{2})^{4}=\frac{1}{16}$ |
