1. dominant gene on the sex chromosome
2. dominant gene on the autosome
3. recessive gene on the autosome
4. None of the above
dominant gene on the autosome
1. foetocentesis
2. amniocentesis
3. amnioacidopathy
4. None of these
amniocentesis
1. A+ boy and A+ girl
2. A+ boy and A- girl
3. O+ boy and O+ girl
4. O- boy and O+ girl
A+ boy and A- girl
1. 4
2. 6
3. 8
4. 1
4
1. Haemophilia
2. β-thalassemia
3. colour blindness
4. Glucose-6-phosphate dehydrogenase deficiency
β-thalassemia
1. 50%
2. 100%
3. 25%
4. 75%
50\%
1. present on autosomes
2. present on X-chromosome
3. present on short arms (P) of Y-chromosome
4. long arm (q) present on Y-chromosome
present on X-chromosome
1. trisomy of 21st chromosome
2. loss of half of the long arm of chromosome 5
3. loss of half of the short arm of chromosome 5
4. fertilization of an XX egg by a normal Y-bearing sperm
loss of half of the short arm of chromosome 5
1. Polyploidy
2. Amniocentesis
3. Pedigree analysis
4. Genetic engineering
Pedigree analysis
1. identical genes
2. allelomorphs
3. linked genes
4. dominant genes
linked genes