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RSSSpeciation
Speciation refers to the
evolutionary process by
which new biological species
arise. There are three main
ideas concerning the
emergence of new species
(Modes of Speciation), each
based on the degree to which
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Genetic drift
Genetic drift is the term
used in population genetics
to refer to the statistical
drift over time of gene
frequencies in a population
due to random sampling
effects in the formation of
successive generations. In a
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Natural selection
Natural selection is the
phrase Charles Darwin used
in 1859 for the process he
proposed to explain the
origin of species and their
apparent adaptation to their
environment. Along with the
rules of inheritance,
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Mutation
In biology, mutations are
changes to the genetic
material (usually DNA or
RNA). Mutations can be
caused by copying errors in
the genetic material during
cell division and by
exposure to radiation,
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Browse Reference Articles
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Trait (biology)
In biology, a trait or character is a feature of an organism. The term phenotype is sometimes used as a synonym for trait in common use, but strictly speaking, does not indicate the trait, but the ... > more -
Allele frequency
Allele frequency is a measure of the relative frequency of an allele on a genetic locus in a population. Usually it is expressed as a proportion or a percentage. In population genetics, allele ... > more -
Introduction to genetics
Genetics is the study of how living things receive common traits from previous generations. These traits are described by the genetic information carried by a molecule called DNA. The instructions ... > more -
Transgenic plants
Transgenic plants are plants that have been genetically engineered, a breeding approach that uses recombinant DNA techniques to create plants with new characteristics.They are identified as a class ... > more -
Parallel evolution
Parallel evolution is the independent evolution of similar traits, starting from a similar ancestral condition. Frequently this is the situation in more closely related lineages, where several ... > more -
Plant sexuality
Plant sexuality deals with the wide variety of sexual reproduction systems found across the plant kingdom. This article describes morphological aspects of sexual reproduction of plants. That plants ... > more
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