Cell Cycle and Cell Division

Discuss with your teacher about.
1. haploid insects and lower plants where cell division occurs, and

2. Some haploid cells in higher plants where cell division does not occur.

1. Male bees, wasps and ants are haploid as they are produced from unfertilized eggs.

2. Synergids and antipodal cells do not divide.

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Describe the following

1. Synapsis
2. Bivalent
3. Chiasmata.

Draw diagrams to illustrate your answer.

Distinguish between cytokinesis and karyokinesis.

Can there be DNA replication without cell division.

Name the stage of cell cycle at which one of the following events occur.

1. Chromosomes are moved to spindle equator.

2. Centromere splits and chromatids separate.

3. Pairing between homologous chromosomes takes place.

4. Crossing over between homologous chromosomes takes place.

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