In this article we will discuss about transposable elements in human. In human genome, two retro-transposons called LINEs (long interspersed sequences) and SINEs (short interspersed sequences) are found. LINEs are repeated sequences more than 5,000 bp long, interspersed among unique sequence DNA up to approximately 35,000 bp long. Full length LINEs are autonomous elements that encode the enzymes for their [...]
The following points highlight the six common types of DNA markers. The types are: 1. Single-nucleotide Polymorphism 2. Short Tandem Repeats 3. Variable Number Tandem Repeats 4. Restriction Fragment Length Polymorphism 5. Randomly Amplified Polymorpohic DNA 6. Amplified Fragment Length Polymorphism. Type # 1. Single-nucleotide Polymorphism (SNPs or "Snips"): The single-nucleotide polymorphism is a single base-pair change or a point [...]
In this article we will discuss about the transposable elements in yeast. In yeast the transposable element is known as Ty element which is about 5-9 kb long and includes two directly repeated terminal sequences called long terminal repeats (LTR) or deltas (δ) (Fig. 9.42). Each delta contains a promoter and sequences that are recognized by transposase. The Ty element [...]