42 results found

Search Results for: natural mutation

Natural selection

Natural Selection Definition What is natural selection in biology? Natural selection is defined as a process in nature... Read More

Natural mutation

natural mutation --> spontaneous mutation A mutation which occurs by itself without first being affected by a mutagen, for... Read More

Mutagen

Mutagen Definition What is a mutagen? A mutagen is a substance or agent that causes DNA impairment that results in the... Read More

Evolution

Reviewed by: Mary Anne Clark, PhD Evolution Definition Evolution (evo‧lu‧tion, ˈɛvəluːʃ(ə)n) is... Read More

Genetic diversity

Genetic Diversity Definition Each species is composed of individuals with their own set of genes. A gene is the inheritance... Read More

Genetic drift

Genetic Drift Definition What is genetic drift in simple terms? The simple definition of genetic drift ( also referred to... Read More

Pleiotropy

Pleiotropy Definition When one single gene starts affecting multiple traits of living organisms, this phenomenon is known... Read More

Genetics – Lesson Outline & Worksheets

  Topics Modules Quizzes/Worksheets Description Introduction to Genetics Genetics - Definition:... Read More

A Look Into Natural Selection and its Mechanisms

Charles Darwin is credited with outlining the fundamentals of evolution. He was a smart and eager pupil and protégé,... Read More

Polymorphism

Polymorphism Definition The occurrence of two or more different forms or morphs in the population of a species is referred... Read More

Sympatric speciation

Speciation is a process of evolution through which two different existing populations evolve and a distinct species form. It... Read More

Isoenzyme

Isozymes (also known as isoenzymes) are enzymes that differ in amino acid sequence but catalyze the same chemical reaction.... Read More

Genetic variation

Definition noun, plural: genetic variations Variations of genomes between members of species, or between groups of species... Read More

The Making of the Fittest: DNA and the Ultimate Forensic Record of Evolution

The Making of the Fittest: DNA and the Ultimate Forensic Record of Evolution   ... Read More

Biology

Biology Definition Biology is the branch of science that primarily deals with the structure, function, growth, evolution,... Read More

Cancer

Cancer definition In biology, cancer is defined as the malignant growth due to uncontrolled cell division. It is now used... Read More

Chromosomal crossover

Chromosomal Crossover Definition noun A process occurring during meiosis wherein homologous chromosomes pair up and... Read More

Evolutionary Analysis, Third Edition

Evolutionary Analysis, Third Edition      ... Read More

Degenerate

Degenerate means to become worse or less of its kind or former state. In biology, it means an entity performs the same... Read More

The Plausibility of Life: Resolving Darwin’s Dilemma

The Plausibility of Life: Resolving Darwin's Dilemma    ... Read More

Gene

A gene is the fundamental, physical, and functional unit of heredity. The genes make up the sequences of DNA (genotypes).... Read More

Hot spot

Definition noun, plural: hot spots (1) (pathology) A superficial weeping skin lesion such as in dogs and cats caused by an... Read More

Degenerative disease

A degenerative disease is defined as a disease characterized by the worsening condition due to the deterioration of the... Read More

Asexual reproduction

Asexual Reproduction Definition What is asexual reproduction? Asexual reproduction is a mode of reproduction that does not... Read More

Trehalose

Definition noun plural: trehaloses tre·ha·lose, loʊs A disaccharide made up of two α-glucose molecules, and serves as... Read More

Quantum Evolution: How Physics’ Weirdest Theory Explains Life’s Biggest Mystery

Quantum Evolution: How Physics' Weirdest Theory Explains Life's Biggest Mystery  ... Read More

Melanocyte

Definition noun, plural: melanocytes A type of pigment cell that, in particular, produce melanin, and occurs in the... Read More

Organism

An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and... Read More

Galactose

Definition noun plural: galactoses ga·lac·tose, ɡəˈlæktəʊz An aldohexose monosaccharide (chemical formula:... Read More

Genetic equilibrium

Definition noun A condition where a gene pool is not changing in frequency because the evolutionary forces acting upon the... Read More

Molecular Biology of the Cell, Fourth Edition: A Problems Approach

      AUTHORS:  Wilson/ Hunt PRODUCT DETAILS:... Read More

Wild type

Definition noun (1) The typical (or the most common) form, appearance or strain existing in the wild. (2) The normal,... Read More

Denaturation

Denaturation Definition In biochemistry, denaturation is defined as a process in which a molecular structure deviates from... Read More

Woolly cheetah

Woolly cheetahs were reported in the 19th century as a separate species of cheetah that had longer, denser fur. Several... Read More

Phenotype

Phenotype refers to the observable characteristics of an organism as a multifactorial consequence of genetic traits and... Read More