1. both presents normal
2. father normal, mother carrier
3. father colourblind, mother carrier
4. father colourblind, mother normal
father colourblind, mother carrier
1. Galton
2. Morgan
3. Garrod
4. Mendel
Garrod
1. Thalassemia
2. Grave’s disease
3. Cushing’s disease
4. Parkinson’s disease
Thalassemia
1. Leporsy
2. Goiter
3. AIDS
4. Albinism
Albinism
1. 100%
2. 25%
3. 50%
4. 0%
0\%
1. 8th
2. 13th
3. 21st
4. 23rd
21st
1. 1921
2. 1911
3. 1912
4. 1914
1911
1. A
2. B
3. AB
4. O
O
1. XXY
2. XYY
3. XO
4. YO
XO
1. all daughters are normal, all sons are haemophilic
2. all daughters are normal, half the sons are colourblind
3. all children are normal
4. all children are colourblind
all children are normal