This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
The approximate number of genes contained in the human genome is - 
Select and explain. 
A. 40,000, B. 30,000, C. 80,000, D. 1,00,000
B: 30,000
Answer: B: 30,000 
Explanation: Ans. is 'b' i.e., 30,000 genes "What was totally unexpected was that human have a mere 30,000 genes rather than the 100,000 predicted only recently".