73 results found

Search Results for: spontaneous

Spontaneous generation

Definition noun plural: spontaneous generations The previously popular notion that living organisms arise or develop from... Read More

Spontaneous

spontaneous 1. Proceding from natural feeling, temperament, or disposition, or from a native internal proneness, readiness,... Read More

Biogenesis

Biogenesis Definition Biogenesis refers to the idea or the process whereby a living thing comes from another living thing,... Read More

Spontaneous transformation

spontaneous transformation transformation of a cultured cell that occurs without the deliberate addition of a transforming... Read More

Abiogenesis

Definition noun plural: abiogeneses a·bi·o·gen·e·sis, eɪbaɪəʊˈdʒɛnəsɪs (1) The idea that primitive life... Read More

Nonsense mutation

A nonsense mutation is the type of point mutation that renders the translation process useless by coding for a stop/nonsense... Read More

Energy coupling

What is Energy Coupling? Work, whether it be physical or biological, requires energy to be expended. In biological... Read More

Law of biogenesis

Law Of Biogenesis Definition Law of Biogenesis states that life arises from pre-existing life, not from nonliving matter.... 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

Centromere

Centromere Definition Centromere is defined as the point of attachment for the sister chromatids generated after DNA... Read More

Actions of Caffeine in the Brain with Special Reference to Factors That Contribute to Its Widespread Use

IV. Actions of Caffeine on Brain Functions and BehaviorHaving discussed the molecular and neuronal actions of caffeine,... 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

At Home in the Universe: The Search for the Laws of Self-Organization and Complexity

At Home in the Universe: The Search for the Laws of Self-Organization and Complexity  ... Read More

Natural mutation

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

Spontaneous Mutation

A 'naturally' occurring mutation in the absence of a mutagen that would otherwise be a known factor for inducing a... Read More

Nucleobase

Definition noun plural: nucleobases (biochemistry) The base in the nucleic acid, e.g. purines and pyrimidines Details ... Read More

Chimera

When we learned about the basic genetics of biological life, we came to know that almost all the cells of an individual have... Read More

Radioactive decay

radioactive decay (Science: physics) The process by which a spontaneous change in nuclear state takes place. This process is... Read More

Sarcoplasmic reticulum

Definition noun plural: sarcoplasmic reticula (cell biology) The special type of smooth endoplasmic reticulum found in... Read More

Cytosine

Definition noun plural: cytosines cy·to·sine, ˈsaɪtəsiːn (biochemistry) A pyrimidine nucleobase that complementary... Read More

Natural selection

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

Thymine

Thymine Definition A thymine is a pyrimidine nucleobase in the DNA molecule that complementary pairs with adenine. It has a... Read More

Species

Every living organism is unique when you observe its morphological, anatomical, molecular, genetic, biochemical, chemical,... Read More

Abortion

Abortion 1. (Science: obstetrics) The premature expulsion from the uterus of the products of conception of the embryo or of... Read More

Plant Metabolism

Introduction Plants are responsible for incredible feats of molecular transformation. The processes are always being... Read More

Forest fire

Definition noun, plural: forest fires A wildfire that consumes a forest or a woodlandSupplementA wildfire is a... Read More

Stannius ligature

Definition noun A ligature done in between the sinus venosus and the atrium or around the atrioventricular junction of an... Read More

Active agglutination

Definition noun An agglutination reaction in which the antigen is found naturally on particle Supplement Agglutination... Read More

Dizygotic twins

Definition noun Two offspring that develop from two zygotes but share a common uterine environment, and would be born at the... Read More

Intercalary meristem

The basic structural framework of plants is composed of different types of tissues. Based upon the capacity to divide, the... Read More

Organic compound

Organic Compound Definition An organic compound is a compound that, in general, contains carbon covalently bound to other... Read More

Disintegration

Disintegration The process by which anything is disintegrated; the condition of anything which is disintegrated. (Science:... Read More

Immortalization

Immortalization --> immortalisation (Science: cell biology) The ability of a genetically engineered cell line to... Read More

Ribonucleic acid

Ribonucleic Acid Definition noun (uncountable), ribonucleic acids ri·bo·nu·cle·ic ac·id, raɪboʊnjuːkliːɪk... 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

Uracil

Definition noun plural: uracils u·ra·cil, ˈjʊərəsɪl (biochemistry) A pyrimidine nucleobase in RNA that... Read More

Oxidation

Oxidation Definition How do we define oxidation? There are several definitions of the oxidation process. Oxidation can be... Read More

Radiation

radiation (Science: radiobiology) propagation of energy through space. In the context of this report, it is electromagnetic... Read More

Zooid

Definition noun, plural: zooids (1) A cell capable of spontaneous movement and can live independently or apart from the... Read More

RNA-DNA World Hypothesis?

How did life start as we know it? In the scientific community, the "RNA World Hypothesis" has many adherents. Many believed... Read More