Search Results for: usual
Chromatids
Chromatid Definition Chromatids are found inside our cells. Chromatids are condensed chromosomes distinguishable during... Read More
Null hypothesis
Null Hypothesis Definition Null hypothesis is defined as “the commonly accepted fact (such as the sky is blue) and... Read More
Aneuploidy
Definition noun (genetics) The chromosomal variation due to a loss or a gain of one or more chromosomes resulting in the... Read More
Eosinophil
Definition noun, plural: eosinophils A type of polymorphonuclear leukocyte characterized by having a kidney-shaped nucleus,... 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
Hemizygous gene
Definition noun A gene in which it has no allelic counterpart or is present as only a single copy instead of the usual two... Read More
Oxygen Debt
A cumulative deficit of oxygen resulting from intense exercise; the deficit must be made up when the body returns to rest.A... Read More
Hyaline cartilage
Hyaline Cartilage Definition Before we define hyaline cartilage, let us understand what cartilage is. What is cartilage? Is... Read More
Limiting factor
Limiting Factor Definition A limiting factor refers to any of the factors (variables) in an environment capable of limiting... Read More
Castor oil enema
An injection of castor oil, or a solution containing castor oil, into the rectum as a laxative. Not in common usage today,... Read More
Feedback mechanism
Feedback Mechanism Definition What is a feedback mechanism? A feedback mechanism is a physiological regulation system in a... Read More
The FIFTH MIRACLE: The Search for the Origin and Meaning of Life
The FIFTH MIRACLE: The Search for the Origin and Meaning of Life ... 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
Adventitious root
Definition noun, plural: advemtitious roots A root growing on the stem, leaf, or other body parts apart from the usual the... Read More
Transfer ribonucleic acid
Definition noun plural: transfer ribonucleic acids trans•fer ri•bo•nu•cle•ic ac•id, ˈtɹænsfɝ... Read More
Plant Cells vs. Animal Cells
Plant Cells Most cells are not visible with the naked eye. However, with microscopes of various types, plant cells can be... Read More
Meiosis and Alternation of Generations
Review of Mitosis: Cell Cycle The cell cycle contains the process in which cells are either dividing or in between... Read More
Neural Control Mechanisms
Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More
Endocytosis
Endocytosis Definition What is endocytosis in biology? Endocytosis is a cellular process by which a cell internalizes any... 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
Adipose tissue
Adipose Tissue Definition Adipose tissue, a specialized variety of connective tissue, is composed of lipid-rich cells known... Read More
Retrograde
retrograde 1. Moving backward or against the usual direction of flow. 2. Degenerating, deteriorating or catabolic. Origin:... Read More