- 1(current)
Q. No.Meiosis in diploid organisms results in:
1. production of gametes
2. reduction in the number of chromosomes
3. introduction of variation
4. All of the above
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At which stage of meiosis does the genetic constitution of gametes is finally decided
| 1. | Metaphase-I | 2. | Anaphase-II |
| 3. | Metaphase-ll | 4. | Anaphase-I |
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Meiosis occursin organisms during
| 1. | sexual reproduction |
| 2. | vegetative reproduction |
| 3. | Both (a) and (b) |
| 4. | None of these |
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During Anaphase-I of meiosis
| 1. | homologous chromosomes separate |
| 2. | non-homologous autosomes separate |
| 3. | sister chromatids separate |
| 4. | non-sister chromatids separate |
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Mitosis is characterised by
| 1. | reduction division |
| 2. | equal division |
| 3. | Both (1) and (2) |
| 4. | pairing of homologous chromosomes |
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A bivalent meiosis-I consists of
| 1. | two chromatids and one centromere |
| 2. | two chromatids and two centromeres |
| 3. | four chromatids and two centromeres |
| 4. | four chromatids and four centromeres |
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Which of the events listed below is not observed during mitosis?
| 1. | Chromatin condensation |
| 2. | Movement of centrioles to opposite poles |
| 3. | Appearance of chromosomes with two chromosomes joined together at the centromere |
| 4. | Crossing over |
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Identify the wrong statement about meiosis
| 1. | Pairing of homologous chromosomes |
| 2. | Four haploid cells are formed |
| 3. | At the end of meiosis the number of chromosomes are reduced to half |
| 4. | Two cycle of DNA replication occurs |
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Select the correct statement about G1 phase
1. cell is metabolically inactive
2. DNA in the cell does not replicate
3. it is not a phase of synthesis of macromolecules
4. cell stops growing
- 1(current)
Q. No.
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