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Discussion Starter · #1 ·
A carrier of X linked recessive disorder that is lethal in utero. Which of the following is expected ratio of her viable female to male child .
A) 1:1
B) 1:2
C) 2:1
D) 2:3
E) 3:2

please need your input.
 

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Discussion Starter · #3 ·
I'd choose 2:1

.....X.....Y
X...XX...XY
...⨰X....⨰Y⟶nonviable

Of the viable babies left in the grid, two are female and one is male...
Thank you very much.
I did wrong on that question.
Could I further post for discussion of questions which I did not get ?
 
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