Janith Piumal

Janith Piumal

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Natural Resources

Resources is a source or supply from which benefit is produced. A natural resource is replaced by natural process. Renewable resources is a resources that capable of natural regeneration within a time span relevant to human e.g. – freshwater,soil, plant…

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Population

Population is the group of organisms of same species living in in the particular habitat. forces that controlling the growth of a population are biotic potential (ability to reproduce at given rate and inherent the characteristic of a populations), environmental…

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Evolution

Evolution is the natural process of irreversible changes producing new forms with adaptive improvements. Cosmological evolution Chemical evolution Biological evolution Cultural evolution Cosmological evolution Cosmological evolution is explained by the big bang theory. 13.8 billion years ago created all the…

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Vectors for Gene Cloning

Gene cloning is a process in which multiple copies of genetic material, such as genes, are created. To do this, scientists utilize vectors – specific strands of DNA that can be inserted into cells and transport the desired genes with…

Manipulation of Purified DNA

Performing a restriction digest in the laboratory Digest a sample of λ DNA (concentration 125 μg ml−1) with HindIII DNA – The amount of DNA required for restriction digestion varies depending on the experiment and its desired results. – To…

Plasmid Vectors for plant cells

Ti-plasmid are widely utilized to introduce DNA into plant cells. but natural form of Ti plasmids are not suitable for as cloning vector because The size of the Ti plasmids is 150kb-200kb, it is extremely difficult to manipulation. Binary vector…

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Recombinant DNA Technology

Recombinant DNA Technology is the process that isolation and manipulation of DNA sequences. it involves cutting, combining of DNA from different sources and create new DNA combination Gene Cloning Gene cloning is the process of generation of genetically identical copy…