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Distinguish between cytokinesis and karyokinesis.


Cytokinesis

Karyokinesis

1.It is a division of cytoplasm into daughter cells.

2. Stages such as prophase, metaphase, anaphase, and telophase are not present in cytokinesis.

1. It is division of nucleus into daughter nuclei

2. It is divided into four stages: prophase, metaphase, anaphase, and telophase

 
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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.


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.


Describe the following

1. Synapsis
2. Bivalent
3. Chiasmata.

Draw diagrams to illustrate your answer.


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