The upcoming discussion will update you about the difference between Prokaryotes and Eukaryotes. Difference # Prokaryotes: 1. Number of replicon or origin is one. 2. When circular DNA is copied, replication begins at a single point and the replication forks move around the circle, a structure shaped like the Greek letter theta (Ө). 3. The length of RNA primer is [...]
This article throws light upon the three transposable elements in eukaryotes. The three transposable elements in eukaryotes are: (1) Yeast Ty Elements (2) Drosophila Transposons and (3) Controlling Elements in Maize. Element # 1. Yeast Ty Elements: The yeast carries about 35 copies of a transposable element called Ty in its haploid genome. These transposons are about 5900 nucleotide-pairs long [...]
Ergastic substances or cell inclusions are the products of cell metabolism, appearing and disappearing at various stages of cell's life-cycle. In majority of cases they are waste products of simple chemical nature compared to protoplasmic components which are more complex. These ergastic substances may be present in the cell walls or vacuoles or in the organelles of protoplasm. They may [...]