Search Results for: ym-shift
Demographic transition
The demographic transition model is a theoretical framework that explains the historical shift in population dynamics as a... Read More
Frameshift mutation
Define Frameshift Mutation What is a frameshift mutation? In biology, insertions or deletions of nucleotides in the coding... Read More
Chronobiology
Chronobiology Definition Chronobiology is a branch of biology that studies time-related phenomena (e.g., biological... Read More
Great Oxygenation Event
Great Oxygenation Event Definition The Great Oxygenation Event is defined as the surge of dioxygen (O2) levels in the... Read More
Depolarization
Depolarization is the removal of polarity by a process or action. It might also be used to describe how such activity leads... Read More
Silent mutation
A mutation is a change in the nucleotide sequence of a gene or a chromosome. When there is only one nucleotide involved, it... Read More
Natural selection
Natural Selection Definition What is natural selection in biology? Natural selection is defined as a process in nature... Read More
Missense mutation
What is a missense mutation? Literally speaking, a mutation that changes the meaning of the encoded gene sequence is the... Read More
Genetic Mutations
Reviewed by: Mary Anne Clark, Ph.D.Genetic Mutations Genetic mutations are inherited variations in an... Read More
Trophic level
In ecology, a trophic level pertains to a position in a food chain or ecological pyramid occupied by a group of organisms... Read More
Deciduous forest
Deciduous Forest Definition A deciduous forest is a type of forest dominated by trees that lose their foliage at the end of... Read More
Buck’s traction
Buck's Traction Definition Buck's traction for femur fracture is very helpful. It can be utilized in the treatment and... Read More
Disruptive Selection
An evolutionary process known as disruptive selection (or disruptive natural selection) causes a population to become... Read More
Adenosine triphosphate
Adenosine Triphosphate Definition noun plural: adenosine triphosphates (biochemistry) An organic compound that is... 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
Repolarization
Definition noun The process or act of repolarizing; the restoration of a polarized condition Supplement In physiology,... Read More
Sugar-phosphate backbone
Definition noun A structural component of DNA that consists of 5-deoxyribose sugars and phosphate groups involved in... Read More
Nucleotide deletion
Definition noun A deletion of a single nucleotide causing a shift in the reading frame of the codons in the mRNA, thus, may... Read More
Dehydration reaction
What is dehydration synthesis? A dehydration reaction is a form of biochemical reaction wherein a water molecule is lost or... Read More
Human milk oligosaccharide
Definition noun plural: human milk oligosaccharides An oligosaccharide that occurs in high concentrations and exclusively... Read More
Homeostatic Mechanisms and Cellular Communication
Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory... Read More
Respiration
Organization of the Respiratory System Each lung is composed of air sacs called alveoli - the sites of gas exchange with... Read More
Blindness – Evolutionary regression? Maybe not!
The recent Netflix's hit flick, Bird Box, surely startled the viewers with the thrilling scenarios revolving around the... Read More
Secondary succession
We all have come across news where forest lands got destroyed by wildfires. Or sometimes we have read about an entire... Read More
Parasitism
Organisms depend on different sources of food to survive. Larger organisms like plants make their own food (autotrophs) and... Read More
Kingdom Animalia
Kingdom Animalia Definition Each person can say that they know of or can name at least one animal. However, do people know... Read More
Parthenogenesis
To reproduce, by definition, means to produce new offspring. The process is referred to as reproduction, which is one of the... Read More
Progesterone
Definition noun, plural: progesterones A progestogen hormone, with a chemical formula of C21H30O2, naturally produced in... Read More
Equilibrium
Equilibrium Definition In Biology Equilibrium refers to the state of balance and stability. In biology, equilibrium is... Read More
Anaerobic bacteria
Bacteria are classified according to the need for oxygen to survive and grow. For example, aerobic bacteria are bacteria... Read More
Fragmentation
Fragmentation Definition What is fragmentation? In general, fragmentation refers to the state or the process of breaking... Read More