02-09-2007, 02:25 PM
sorry I am not able to post the pedigree chart.hope you remember.In the family represented by the pedigree, affected persons have a disease characterized by mitochondrially inherited late-onset optic atrophy. Assuming that the family and personal medical history of the partner is unremarkable, the risk for optic atrophy to develop in the male child of IV-9 is closest to
A) 0%
B ) 25%
C ) 50%
D ) 75%
E ) 100%
The chart shows 4 generations, first generation woman has disease, second gen 2 boys, 2 girls all 4 with disease. third generation..one girl has 1 boy and one girl , both sick.The fourth generation ..the girl has 2 girls and 1 boy(IV-9) , all 3 sick. and they are asking about the kid of the boy
A) 0%
B ) 25%
C ) 50%
D ) 75%
E ) 100%
The chart shows 4 generations, first generation woman has disease, second gen 2 boys, 2 girls all 4 with disease. third generation..one girl has 1 boy and one girl , both sick.The fourth generation ..the girl has 2 girls and 1 boy(IV-9) , all 3 sick. and they are asking about the kid of the boy