There are so many online journals related to numerous topics. Those journals contain sub categories related to a particular topic. That journal may be subject specific or topic specific. And these are named accordingly. Trnsgenesis online journals refer to the list of journals that are related to the transgenesis process. High-impact journals are those considered to be highly influential in their respective fields. 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.