Link to this slang definition. To link to this term in a web page or blog, insert the following. <a href=http://onlineslangdictionary.com/meaning-definition-of/trippy>trippy</a>. To link to this term in a wiki such as Wikipedia, insert the following. [http://onlineslangdictionary.com/meaning-definition-of/trippy trippy]
The two main sources of genetic variation are mutations and recombinations of genes as a result of sexual reproduction. A mutation is a permanent change in the DNA within a gene. Continue Reading. Some mutations, which affect all cells in an organism, are inherited from a parent.
Natural selection acts upon two major sources of genetic variation: mutations and recombination of genes through sexual reproduction. Most mutations do not affect the reproductive fitness of individuals -- some may be beneficial, some may be harmful, and many may be neutral.atural selection acts upon two major sources of genetic variation: mutations and recombination of genes through sexual reproduction. Most mutations do not affect the reproductive fitness of individuals -- some may be beneficial, some may be harmful, and many may be neutral.