What is the Difference Between Barr Body and Polar Body?
🆚 Go to Comparative Table 🆚The main difference between a Barr body and a polar body lies in their structure and function:
- Barr Body:
- An inactive X chromosome found in female somatic cells.
- Named after its discoverer, Murray Barr.
- Formed through a process called lyonization, where one of the two X chromosomes in females is inactivated.
- Most of the genes on the Barr body are inactive, meaning they are not transcribed.
- Polar Body:
- A small haploid cell formed during the sexual reproduction process.
- Not a chromosome, but rather a cell that contains half of the genetic material from the parent cell.
- Polar bodies are produced during meiosis and are usually discarded after fertilization.
Both Barr bodies and polar bodies are unique to females, but they serve different purposes and have distinct structures. While Barr bodies are inactive X chromosomes in somatic cells, polar bodies are small haploid cells involved in the sexual reproduction process.
Comparative Table: Barr Body vs Polar Body
The Barr body and the polar body are two different structures found only in females. They have distinct characteristics and functions. Here is a table comparing the differences between them:
| Feature | Barr Body | Polar Body |
|---|---|---|
| Definition | Inactive X chromosome found in female somatic cells | Small haploid cell formed during oogenesis |
| Formation | Formed through a process called X-inactivation to prevent females from having twice as many X chromosomes | Formed during meiosis, indicating the completion of the process in egg cell formation |
| Function | Remains inactive throughout the cell's entire lifetime | Disappears or dissolves after fertilization |
| Location | Found in somatic cells | Found during the sexual reproduction process |
In summary, the Barr body is an inactive X chromosome found in female somatic cells, while the polar body is a small haploid cell formed during oogenesis. Both structures are unique to females and serve different purposes in the reproductive process.
- Barr Body vs Davidson Body
- Polar vs Nonpolar
- Polar Bonds vs Polar Molecules
- Polar Bear vs Brown Bear
- Polar vs Dipolar Molecules
- Covalent vs Polar Covalent
- Polarizability vs Dipole Moment
- Body Cells vs Primary Reproductive Cells
- Polarised vs Non Polarised Cells
- Basal Body Temperature vs Regular Temperature
- Polar vs Nonpolar Covalent Bonds
- Black Body vs Grey Body
- Polar vs Nonpolar Amino Acids
- Yolk Sac vs Fetal Pole
- B DNA vs Z DNA
- Sperm vs Egg
- Golgi Bodies vs Mitochondria
- Haploid vs Diploid
- Maternal vs Paternal