The below mentioned article provides a short note on DNA repair synthesis. Several types of damages, such as breakage in DNA strand, alteration of base pairs, cross linking of DNA with DNA or cross linking of DNA with proteins and pyrimidine dimer formation etc., may occur in chromosomes. These damages may be caused by mutagens produced within the cell itself [...]
The below mentioned article provides a study note on transposable elements. The term "transposon" was coined by Hedges and Jacob in 1974 for mobile discrete DNA sequences in the genome; such sequences are able to transport themselves from one location to the other locations within the genome. These sequences are also called transposable genetic elements. Transposable genetic elements are found [...]
The below mentioned article provides a short note on mitotic crossing over. Crossing over not only occurs during meiosis but also during mitosis. In individuals heterozygous for a gene producing a visible phenotype, somatic crossing over leads to the production of "twin spots" of dominant and recessive phenotypes. Mitotic crossing over was first discovered in Drosophila by Stern in 1936, [...]