Oogenesis
The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.
Cell Division
Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:
Compare and contrast the relationship between chromatin and
chromosomes.
The genetic material refers to the materials present in the nucleus, mitochondria, and cytoplasm, which play a crucial role in deciding the composition and function of cell substances and are self-replicating variable.
Differences-
Similarities:
- Chromatin and Chromosomes both are consists of DNA-double helix structure.
- Both structures store genetic material.
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Chromatin |
Chromosomes |
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It is composed of nucleosomes. |
They are condensed chromatin fibres. |
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Allows DNA replication. |
No metabolic activity is shown. |
|
Visualized under the electron microscope. |
Visualized under the light microscope. |
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Thin, long, uncoiled structure. |
Thick, compact, ribbon-like structure. |
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