It is the part of biodiversity which refers to the variation in genes that exists within a species. Genetic diversity serves as a path for specific populations to adapt itself according to changing environments. With more variation, it is more likely that some individuals in a population will possess variations of alleles that are suited for the environment. Those individuals are more likely to survive to produce offspring bearing that allele. The population will continue for more generations because of the success of these individuals. Genetic diversity could sometimes relocate to post-genomic level by using polypeptide rearrangements. Analog to gene recombination, polypeptide rearrangement recombines partial gene products at post-translational level to produce new polypeptide sequences resulting indirectly in genetic diversity.
The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.
Last date updated on June, 2014