- 23 is one half of 46
- A human body cell contains 46 chromosomes
- A sex cell of a human contains 23 chromosomes
- So, a human sex cell contains one half of the chromosomes of a human body cell

So, a human sex cell contains one half of the chromosomes of a human body cell
Compared to the amount of hereditary information in a human body cell, how much hereditary information is contained in a human sex cell?
- 23 is one half of 46 
- A human body cell contains 46 chromosomes 
- A sex cell of a human contains 23 chromosomes