Gap junction definition Gap junction (also known as communicating junctions) refers to the type of cellular junction that allows passage of ions and small molecules between the cytoplasm of adjacent cells. This exchange is done through formation of a protein channel in cell plasma membrane. Cellular communication and cell junctions Formation of functional tissues and […]

Genetic Code Definition Genetic Code refers to the correspondence system between a codon and an amino acid. This code is universal, i.e., it is used by (practically) all existing species, and it is redundant, which means that the same amino acid is encoded by different codons. From DNA to Protein Based on the Biology Central […]

Genetics definition Genetics derives from ancient Greek genesis meaning “origin” and refers to the science that studies genes, heredity and diversity in living organisms. It is the branch of Biology that focuses on study of transmission of biological characteristics from parents to children, that is, from generation to generation over time. The functional unit responsible for […]

GFP – Green Fluorescent Protein, is the first naturally fluorescent protein that has been identified. Its discovery has revolutionized the life sciences.

Homologous Genes definition Homology derives from the Greek homos (equals) and logos (relation) and refers to the relation existing between two structures (of different species) that share a common ancestor. Definition of homologous genes is based on the same, which states that two genes are homologous when their DNA sequence derives from a common origin, and […]

Population Genetics definition Population Genetics refers to the branch of Genetics that studies the genetic constituent of a population. It focuses specifically on hereditary alterations that occur in a population, in time and space. And tries to develop an evolutionary theory that explains and predicts such changes. Objectives of Population Genetics Population Genetics is responsible […]

Quantitative Genetics definition Quantitative Genetics refers to the branch of Genetics that studies variation of a given quantitative characteristic in a given population. Quantitative Characteristics There are two types of characteristics in natural populations, those that have a continuous distribution and those that are distributed by classes. Being the most common the characteristics with continuous […]