Factors in Genetic Diversity

Topics: Evolution, Genetics, DNA Pages: 2 (541 words) Published: September 21, 2013
SCI 160.2.2 Faculty: Nadia Blake
Assignment 4_04
Factors in Genetic Diversity
Genetic diversity is a critical factor in organic science. The higher the genetic diversity the more alleles are presented to a group according to Eldon Enger (2007). These alleles have a profound effect on many aspects of organic development. Genetic diversity effects mutations, sexual reproduction, migration, and even population size. Mutations cause new occurrences to happen in a population. Enger states that these occurrences can be a result of modifications to alleles that are already present or can be new alleles that the mutation introduces (2007). Either of the two results in a facet of the population becoming transformed. Many of these mutations can be passed along the gene pool making the likelihood of said mutation to occur in future generations. In the theory of evolution this is the root of all diversity on planet earth. Mutations in evolutionary theory are adaptations to the environment an organism lives in. The next aspect of genetic diversity is sexual reproduction. In sexual reproduction the DNA is not infused with any new information the information is just produced in a different pattern if alleles. The frequency of distinct alleles may not be changed in this process, but the individual is given a specific set of alleles that is not the same as the parent. Genetic diversity is critical in this process, because the diversity of the parent organisms allows for multiple patterns to be present in the DNA. If the population had no diversity the process of sexual reproduction would just be replication of the same identical individual and the entire function of sexual reproduction would be pointless. Migration is a key function in genetic diversity. Migration is when alleles in a certain population move to another group or population Enger points out (2007). This means that while one group gains alleles another group may lose them. Without this critical function...

Cited: Enger, E. (2007). Diversity Within Species and Population Genetics. Concepts in Biology (12 ed., pp. 243-245). Columbus, OH: McGraw-Hill Higher Education.
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