29 results found

Search Results for: anemia

Anemia

Definition noun A qualitative or quantitive deficiency of hemoglobin or red blood cells in circulation resulting in reduced... 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

Examples of Natural Selection

Reviewed by: Mary Anne Clark, Ph.D. Darwin's Finches Darwin's finches are an excellent example of the way in... Read More

Sickle cell anaemia

Definition noun A hereditary blood disorder resulting in anaemia due to a mutation in the allele coding for the beta chain... 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

Circulation

Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More

Overdominance

Definition noun (genetics) A type of dominance characterized by a phenotype that is more pronounced in a heterozygote... Read More

Hemoglobinopathy

Definition noun, plural: hemoglobinopathies A genetic disorder resulting in an abnormal globin structure in the hemoglobin... Read More

Erythroblastosis fetalis

Definition noun A medical condition in the fetus or newborn in which many erythroblasts are released in fetal blood from the... Read More

Pleiotropy

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

Hemolysin

Definition noun, plural: hemolysins An agent or substance that causes hemolysis, i.e. the lysis of red blood cells resulting... 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

Erythropoiesis

Definition noun, plural: erythropoieses The hematopoiesis of red blood cells Supplement Hematopoiesis is the process of... Read More

Ancylostomiasis

Definition noun A disease caused by Ancylostoma hookworm infestation in humans and certain... Read More

Chromosome Mutations – II

Reviewed by: Mary Anne Clark, Ph.D. This page is a continuation of the previous tutorial, Chromosome Mutations... Read More

Effect of Chemicals on Growth & Development in Organisms

Plants Plants require a large number of elements to function properly, mainly carbon, oxygen, and hydrogen, essentially... Read More

A Balanced Vitamin Diet – Vitamins A – K

As mentioned in the previous tutorial, a balanced diet is essential to a healthy organism. Deficiencies in particular... Read More

Jaundice

Jaundice (Science: clinical sign) Yellowing of the skin (and whites of eyes) by bilirubin, a bile pigment. Frequently... Read More

Genetic Information and Protein Synthesis

Genetic Code Genes are sequences of DNA nucleotides that carry and transmit the information specifying amino acid sequences... Read More

Glucose

Glucose occurs naturally and is ubiquitous. It is one of the three most common monosaccharides; the other two are fructose... Read More

Amoebic dysentery

Definition noun A form of dysentery in which the causative agent is an amoeba, particularly Entamoeba... Read More

Genetic disorder

Definition noun, plural: genetic disorders A disorder caused by genetic abnormality Supplement A genetic disorder is a... Read More

Hookworm

Definition noun, plural: hookworms (1) A blood-sucking nematode, with hooked mouth parts used for fastening to the... Read More

Polycythemia

Definition noun An increase in the number of circulating erythrocytes in the blood above the minimum normal... Read More

Hypoxemia

Definition noun Abnormally low partial pressure of oxygen in arterial blood. Supplement Hypoxemia is different from hypoxia... Read More

Ferrous lactate

Definition noun A greenish white crystal or (powder) made up of iron (Fe2+) and lactate anions Supplement Ferrous lactate is... Read More

Ancylostoma

Definition noun A genus belonging to the family of Ancylostomatidae which is a family of nematodes that includes the... Read More

Erythropoietin

Definition noun, plural: erythropoietins A glycoprotein hormone that regulates the production of red blood cells in the bone... Read More

Genetic Mutations

Reviewed by: Mary Anne Clark, Ph.D. Genetic Mutations Genetic mutations are inherited variations in an... Read More