Gene
The functional unit of DNA is gene, the term gene is coined by Wilhelm Johannsen.
Subdivision of gene
- Recon
- Muton
- Cistron
Recon
A recon is a location within a gene that takes part in recombination, which is the process of breaking and rejoining DNA sequences to create new combinations of alleles.
- Recon is the unit of recombination.
- It’s a unit of exchange of genetic material.
- Recon will be held in non sister chromatid.
- Recombination can’t occur within a recon.
Muton
A muton is the smallest unit of DNA that can mutate and change an organism’s phenotype or function.
Cistron
A cistron is a DNA segment that codes for a polypeptide during protein synthesis. A cistron is made up of two parts: exons, which are the coding sequences, and introns, which are the non-coding sequences.
- Cistron is the largest element within a functional gene.
- Cistron is the stage where the actual work occurs.
- A DNA segment with one cistron is called monocistronic.
- A DNA segment with more than one cistron is called polycistronic.
- The term cistron was coined by Seymour Benzer.
- This also knocked down the Bed Theory.
- Cistron is the alternative term for genes.
- It is the DNA segment that codes for a polypeptide during protein synthesis.
