The average ratio of male to female individuals based on $XX$ and $XY$ type of sex determination, in total world of human population is
The average ratio of male to female individuals based on $XX$ and $XY$ type of sex determination, in total world of human population is
- A
$3:1$
- B
$1:3$
- C
$1:4$
- D
$1:1$
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