1. crossing over
2. linkage
3. sex-linked inheritance
4. non disjunction of chromosomes
non disjunction of chromosomes
1. colour blind sons and normal/carrier daughters
2. colour blind sons and daughters
3. all colour blind
4. all normal
colour blind sons and normal/carrier daughters
1. allosomal abnormalities
2. autosomal abnormalities
3. Both (a) and (b)
4. None of the above
autosomal abnormalities
1. XXY
2. XYY
3. XO
4. YO
XO
1. normal female
2. normal male
3. a female with rudimentary ovaries and undeveloped breasts
4. a male with rudimentary testes and undeveloped penis
a female with rudimentary ovaries and undeveloped breasts
1. XX
2. XY
3. XXY
4. XYY
XXY
1. 20 years
2. 25 years
3. 30 years
4. 35 years
35 years
1. Tay-Sach’s syndrome
2. polydactyly
3. Huntington’s chorea
4. phenyl ketonuria
Huntington’s chorea
1. 25-55 years
2. 15-25 years
3. 50-60 years
4. 10-15 years
25-55 years
1. incongruent muscle movement
2. disordered muscle movement and metal deterioration
3. weak eye sight and hearing power
4. inalality to speak
disordered muscle movement and metal deterioration