1. deficiency of vitamin-K
2. infection disease
3. chronic disorder
4. genetic disorder
genetic disorder
1. All sons are normal and daughters are colourblind
2. Both the sons and daughters are pkenotypically normal
3. Both the sons and daughters are colourblind
4. 50% of sons are colourblind and all daughters are phenotypically normal
50\% of sons are colourblind and all daughters are phenotypically normal
1. baldness
2. red-green colour blindness
3. facial hair moustaches in males
4. night blindness
red-green colour blindness
1. sex-linked traits
2. sex limited traits
3. sex differentiation traits
4. sex determining traits
sex limited traits
1. Royal disease
2. Bleeder’s disease
3. X-linked disorder
4. Y-linked disorder
Y-linked disorder
1. Male (father)
2. Female (mother)
3. Both (a) and (b)
4. It is God’s choice
Male (father)
1. sex-linked recessive
2. sex-linked dominant
3. autosomal dominant
4. sex limited
sex-linked dominant
1. Haemophilia
2. Cancer
3. Diabetes
4. Rheumatiod arthiritis
Haemophilia
1. 4.7×1010
2. 30000
3. 2×106
4. 1 million
30000
1. Mendel
2. Morgan
3. Galton
4. Muller
Morgan