Also referred to as gene migration, gene flow is the introduction of genes from one population to the gene pool of another population. This process changes the composition of the gene pool of the receiving population. Good examples of gene flow include the movement of pollen grains from one plant to
Genes are the complete DNA instructions for the construction of a protein. Each gene is composed of groups of three nucleotides called codons. Each codon instructs the cell to add a particular amino acid to the assembling protein.
Products such as human drugs, animal drugs, biological products, complex medical devices, and food and color additives are approved by the U.S. Food and Drug Administration using a variety of methods depending on the product's possible risks. The approval process sometimes involves assessing researc
Companies that manufacture products that require Food and Drug Administration approval must prove that the products are safe and effective, or in the case of medical products, that the benefits outweigh the risks, reports the U.S. Food and Drug Administration. The FDA does not test the products but
A DNA microchip or gene chip is a tiny chip that has many single strands of the DNA from a specific gene attached to it. Sometimes a microchip has more than one gene's DNA on it or different variations of a gene. It is used to test for gene mutations, such as the ones that are thought to be responsi
Each cell of a living organism contains a set of instructions that explains how to build the various components of the plant, animal, fungus or bacteria. DNA is the substance that living things use to carry these instructions. DNA groups itself in discrete clusters that supply the code for a given t
Genes contain instructions for the making proteins. Genes are inherited from parents; each parent contributes one copy of each gene to a child. Deoxyribonucleic acid makes up genes, and genes make up chromosomes.
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