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Based on Figure 8.6 in the chapter, what is the expected ratio of boys to girls among children, assuming random fertilisation?

Question
Based on Figure 8.6 in the chapter, what is the expected ratio of boys to girls among children, assuming random fertilisation?
All children will be boys
All children will be girls
Approximately half boys and half girls
Ratio cannot be predicted at all
Answer
Approximately half boys and half girls
Detailed Explanation
Since a father produces roughly equal numbers of X-bearing and Y-bearing sperm, the chapter states about half the children will be boys and half will be girls.
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