What is the correct sequence of the steps given here ? Also work out the process depicted in the steps.
| i. | Homologous chromosomes move toward opposite poles of the cell; chromatids do not separate |
| ii. | Chromosomes gather together at the two poles of the cell and the nucleare membranes reform |
| iii. | Homologous chromosomes pair and exchange segments |
| iv. | Homologous chromosomes align on a central plate |
| v. | The haploid cells separate completely |
| 1. | The correct sequence is III → IV → I → II → V and the process is meiosis-I |
| 2. | The correct sequence is II → I → V → IV → III and the process is mitosis |
| 3. | The correct sequence is IV → I → III → II → V and the process is meiosis-I |
| 4. | the correct sequence is II → V → IV → I → II and the process is mitosis |
The total DNA content of each daughter cell is reduced during meiosis because:
| 1. | Chromosomes do not replicate during the interphase preceding meiosis I |
| 2. | Chromosomes do not replicate between meiosis I and II |
| 3. | Half of the chromosomes from each gamete are lost during fertilization |
| 4. | Chromosome arms are lost during crossing over |
Which of the following is not true for sister chromatids?
1. They arise by replication during S phase
2. They segregate from each other during each mitotic anaphase
3. The usually contain identical versions of the same genetic information
4. They segregate from each other during meiosis I