1. Budding in Hydra
2. Multiple fission in Plasmodium
3. Parthenogenesis in insects
4. Binary fission in Amoeba
Parthenogenesis in insects
1. Would be complete for genes on chromosome which is present in a single dose in both sexes
2. Provides exception to independent assortment
3. Is incomplete because of chiasmata
4. Is directly associated with production of cross over
Is incomplete because of chiasmata
1. Inactivation of maternal X-chromosome
2. Inactivation of paternal X-chromosome
3. Inactivation of both X-chromosomes
4. Inactivation of either the paternal or the maternal X-chromosome
Inactivation of either the paternal or the maternal X-chromosome
1. A
2. AB
3. B
4. O
O
1. Insomina
2. Kideny stone
3. Leukaemia
4. Mental disorders
Leukaemia
1. Some normal and some sickle-shaped cells
2. All the erythrocytes having sickle-like shapes
3. More erythrocytes and few sickle-like shaped and a few normal shapes
4. More normal erythrocytes and a few sickle-shaped cells
Some normal and some sickle-shaped cells
1. Heterozygous condition
2. Homozygous condition
3. None of the above
4. Both (1) and (2)
Homozygous condition
1. 24
2. 21
3. 25
4. 23
23
1. Multiple alleles
2. Pseudoalleles
3. Polygenes
4. Oncogenes
Multiple alleles
1. Somatic mutation
2. Reverse mutation
3. Lethal mutation
4. Pleiotropic mutation
Somatic mutation