Search Results for: estimate
Residual volume
Residual volume is a term that is most often seen in lung physiology where it is defined as the amount of air remaining in... Read More
Wilcoxon rank-sum test
Definition noun A non-parametric test of two samples which support exclusively on the order of observations in which the two... Read More
Biodiversity
Biodiversity Lead Author: J. Emmett DuffyThis article has been reviewed and approved by the following Topic Editor: John... Read More
Primer extension
Definition noun A method that uses the enzyme Reverse Transcriptase (RNA-dependent DNA polymerase) to determine the... Read More
Ribonucleic acid
Ribonucleic Acid Definition noun (uncountable), ribonucleic acids ri·bo·nu·cle·ic ac·id, raɪboʊnjuːkliːɪk... 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
Primary productivity
Planet Earth is home to different types of life forms ranging from microscopic bacteria to giant whales and elephants. To... Read More
Phylogenetics
Phylogenetics Definition Phylogenetics is the scientific study of phylogeny. It studies evolutionary relationships among... Read More
Living things
Living Things Definition A living thing pertains to any organism or a life form that possesses or shows the characteristics... Read More
Phenotypic ratio
Phenotypic Ratio Definition How would one define phenotypic ratio? The correlation between the amount of offspring that... Read More
Polygenic inheritance
Polygenic inheritance refers to the kind of inheritance in which the trait is produced from the cumulative effects of many... Read More
Asexual reproduction
Asexual Reproduction Definition What is asexual reproduction? Asexual reproduction is a type of reproduction that does not... Read More
Genotypic ratio
Genotypic Ratio Definition To understand 'Genotypic ratio', let us first understand the terms: 'Genotype' and 'Phenotype'.... Read More
Species Richness
Definition noun, Pertains to a number of different species represent in a given ecological community. Supplement Species... Read More
Ribosomal ribonucleic acid
Definition noun plural: ribosomal ribonucleic acids ri•bo•so•mal ri•bo•nu•cle•ic ac•id, ˈraɪ... Read More
Erythrocyte
Erythrocyte Definition Erythrocytes (red blood cells or RBCs) are the myeloid series of specialized cells that play an... Read More
Demographic transition
The demographic transition model is a theoretical framework that explains the historical shift in population dynamics as a... Read More
Optical density
Definition noun (1) The measure of transmittance of an optical medium for a given wavelength. The higher the OD the lower... Read More
Neutral mutation
Neutral Mutation Definition What is a neutral mutation? Neutral mutations are the alterations in the DNA that are... Read More
Chromosome
Chromosomes Definition Chromosomes are thread-like structures present in the nucleus of plant and animal cells. Chromosomes... Read More
Respiration rate
Respiration Rate Definition Respiration rate is a vital life process that expresses the breathing rate in an organism... Read More
First-order kinetics
What is a First-Order Kinetics (First-Order Reaction)? First-order kinetics refers to a reaction wherein the overall rate... Read More
Natural mutation
natural mutation --> spontaneous mutation A mutation which occurs by itself without first being affected by a mutagen,... Read More
Angiosperm
Angiosperms Definition What is an angiosperm? An angiosperm is a plant that produces flowers. The angiosperms, also... Read More
Invasion index
Invasion index An index devised by Abercrombie & Heaysman as a means to estimate the invasiveness of cells in vitro. The... Read More
Biodiversity
The biological world or life on earth is a marvel that has amazed us since time immemorial. The rich natural diversity of... Read More