1. linkage
2. duplication
3. crossing over
4. non-disjunction of chromosomes
non-disjunction of chromosomes
1. Malpighian tubules
2. Flame cell
3. Nephron
4. Nephridium
Malpighian tubules
1. A
2. B
3. O
4. None of these
None of these
1. Down’s syndrome
2. Turner’s syndrome
3. Klinefelter’s syndrome
4. Hypothalamic syndrome
Down’s syndrome
1. Increase
2. Decrease
3. Remain the same
4. First increases then decreases
Decrease
1. porphyria
2. colour blindness
3. Wilson’s disease
4. phenylketonuria
phenylketonuria
1. The renal vein
2. The urethra
3. The ureter
4. The collecting duct
The ureter
1. colour blindness
2. Hydrocephalus
3. Haemophilia
4. All of these
All of these
1. Fresh water fishes
2. Mammals
3. Desert lizards
4. Salsmanders
Mammals
1. vitamins
2. hormones
3. fatty acids
4. amino acids
amino acids