In human beings, the statistical probability of getting either a male or female child is 50 : 50. Give a suitable explanation.

Question

In human beings, the statistical probability of getting either a male or a female child is 50: 50. Give a suitable explanation.

Answer 1

• Sex of the offspring is determined by the gamete donated by male. 
• Male possess X and Y chromosomes in their 23rd pair.
• The ration between X and Y is 1. 
• Hence the probability of getting either a male or female child is 50: 50.