- 1(current)
Q. No.Meiosis results in the formation of:
| 1. | Two genetically identical diploid cells |
| 2. | Two genetically non identical diploid cells |
| 3. | Four genetically identical haploid cells |
| 4. | Four genetically non identical haploid cells |
Synapsis occurs between
1. mRNA and ribosomes
2. Spindle fibers and centromere
3. Two homologous chromosomes
4. A male and a female gamete
The correct chronology of stages of Prophase I is:
| 1. | Leptotene – Zygotene – Pachytene – Diplotene – Diakinesis |
| 2. | Leptotene – Pachytene – Zygotene – Diplotene – Diakinesis |
| 3. | Leptotene – Zygotene – Pachytene – Diakinesis – Diplotene |
| 4. | Zygotene – Leptotene – Pachytene – Diakinesis – Diplotene |
Which of the following stages of Prophase I of meiosis I can last for many months or years in certain vertebrate oocytes?
| 1. | Zygotene | 2. | Pachytene |
| 3. | Diplotene | 4. | Diakinesis |
The beginning of diplotene is recognized by:
| I: | dissolution of the synaptonemal complex |
| II: | the tendency of recombined homologues of bivalents to separate |
| III: | tetrads becoming clearly visible |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II, and III |
During anaphase I of meiosis
1. Homologous chromosomes separate
2. Non-homologous autosomes separate
3. Sister chromatids separate
4. Non-sister chromatids separate
During meiosis, the bivalent chromosomes clearly appear as tetrads first at:
| 1. | Zygotene of Prophase I | 2. | Pachytene of Prophase I |
| 3. | Metaphase I | 4. | Anaphase I |
During diakinesis of prophase I:
I. Terminalisation of chiasmata takes place.
II. Meiotic spindle is assembled.
III. Nucleolus disappears and the nuclear membrane breaks down.
The correct statements are:
| 1. | I, II and III | 2. | I and II only |
| 3. | I and III only | 4. | II and III only |
The cell shown in the diagram is most likely at:
| 1. | Metaphase I | 2. | Metaphase II |
| 3. | Anaphase I | 4. | Anaphase II |
- 1(current)
Q. No.
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