Population genetics

The four forces of evolution include mutation, gene flow, genetic drift, and natural selection. Mutation occurs when the base pairs in DNA change which leads to different codons being read during translation. Most mutations create codons for the same amino acid that the normal codon would have made but sometimes a different amino acid is made and that leads to changes in the organism's phenotype. Gene flow happens when two different populations come together and reproduce with each other. The…

disaster, the genetic diversity of their population can be effected from on generation to the next. (Reese). When said event occurs, the effect it has on genetic diversity is known as genetic drift. While both genetic drift and natural selection will have an effect on a population, the rate at which they have effect varies. Genetic drift will effect the short term, due to the fact that it’s damage is exposed from one generation to the next because of a rapid decrease in population. Natural…

Title: HAIR GENETICS A study of DNA sequence variations in melanocortin-1-receptors or MC1R genes found many variants of amino acid found in people who were red-haired but rarely found in the non-red people. Researchers have identified 3 common amino-acid-polymorphisms associated commonly with red haired people viz., R160W, R151C, & D294H. The abbreviated names mean common amino acid types were found in positions 160 151, & 294 in proteins are arginine (R), cysteine (C), arginine & aspartic…

traits to the next generation! Over time this process allows organisms to adapt to their environment, thus, making the favorable traits increase in population. Genetic variation is vital, without it natural selection wouldn’t be able to occur. Genetic variation is important in evolution it’s what makes us all unique. Genetic variation in a population is derived from a wide assortment of genes and alleles. An allele is any…

Genetic Engineering As technology advances, more opportunities arise. A major developing technological advancement is in the field of Science, more specifically engineering, and it is known as Genetic Engineering. Dictionary.com defines Genetic Engineering as “the development and application of scientific methods, procedures, and technologies that permit direct manipulation of genetic material in order to alter the hereditary traits of a cell, organism, or population.” What this means is that…

Evolution is defined as the progression of a population which include changes in allele frequencies of a gene pool. The genetic make up or gene pool of the specie going through modification. While the alleles go through the change, so do the traits of the individual. There are mechanisms that are responsible for the change of alleles. The four mechanisms are mutation, gene flow, genetic drift, and natural selection. Every living thing has a different genetic make up or sequence, which can be…

years scientific has linked obesity with genetics. Does obesity have a gene of its own? Or Does obesity is developed by each person healthy…

A Variable Number Tandem Repeat (VNTR) is a molecular motif that plays a considerable role in molecular genetics and specifically forensic analysis [1]. The goal of this experiment is to observe the tandem repeats of the VNTR (D1S80) locus through molecular lab techniques. Cheek cells were isolated from an individual and amplified via a polymerase chain reaction (PCR). Then, the amplified sample was separated through gel electrophoresis. This project entails the interpretation of fluorescing…

in the genetic information. This change occurs through mutations. They may affect all the genes of an individual. Some mutations will lead to the death of an individual; those are said to be lethal. Others will express themselves with little to no consequences whatsoever, and others will provide observable changes. We can look at albinism as an example of mutation. Albinism is caused by a mutation of the gene responsible for the production of melanin in our…

species, it is selected and remains in the population. This is because the variant species…