Search Results for: lethal
Lethal mutation
Lethal Mutation Definition Genetic mutations come from changes in the DNA structure or sequencing in an organism. Often... Read More
Conditional-lethal mutant
Conditional-lethal mutant --> conditionally lethal mutant a viral mutant that can replicate under some (permissive)... Read More
Lethal Gene
Any gene that has an effect that causes the death of the organism at any stage of life.A genes whose effect on the phenotype... Read More
Complete dominance
Complete Dominance Definition Genetics is the study of how traits are inherited by organisms and in what ways these... Read More
Centromere
Centromere Definition Centromere is defined as the point of attachment for the sister chromatids generated after DNA... Read More
Aerotolerant
Aerotolerant Definition The term "aerotolerant" pertains to an organism that does not require oxygen for growth but can... Read More
Obligate anaerobe
Definition noun An anaerobe that does not require oxygen and lives only in anaerobic environment. Supplement Exposure to... Read More
Suppressor-sensitive mutant
suppressor-sensitive mutant A conditionally lethal, host range, bacteriophage mutant that produces nonsense codons and can... Read More
Frameshift mutation
Define Frameshift Mutation What is a frameshift mutation? In biology, insertions or deletions of nucleotides in the coding... Read More
Pleiotropy
Pleiotropy Definition When one single gene starts affecting multiple traits of living organisms, this phenomenon is known... Read More
Aerobic bacteria
Aerobic Bacteria Definition What does aerobic mean in biology? As the name suggests, 'aerobe' in biology means organisms... Read More
Anaerobic respiration
Anaerobic Respiration Definition What is anaerobic respiration? Anaerobic (cellular) respiration is a respiratory process... 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
Natural reservoir
Definition noun A reservoir host harboring the pathogen but shows no ill effects and serves as a source of... 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
Monoploidy
Definition noun (genetics) The state of being monoploid, that is having one set of the chromosomes Supplement Ploidy refers... 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
Incomplete dominance
Incomplete Dominance Definition After Gregor Mendel discovered inheritance laws, the term ''incomplete dominance'' was... Read More
Chromosomes X and Y and Sex Determination
Reviewed by: Mary Anne Clark, Ph.D. In humans, the normal chromosome complement is 46, consisting of 22 pairs of... Read More
Osteopetrosis
Definition noun, plural: osteopetroses A rare hereditary disorder in which the bones are becoming excessively dense, thick,... Read More
Denaturation
Denaturation Definition In biochemistry, denaturation is defined as a process in which a molecular structure deviates from... Read More
Nasopharynx
Definition noun, plural: nasopharynges or nasopharynxes (anatomy) The part of the pharynx extending from the posterior... Read More
Scared to Death
Scared to Death: Self-Willed Death, or the Bone-Pointing Syndrome by Patrick D Hahn Accepted on: September 4,... Read More
Obligate aerobe
Before we define obligate aerobes, let us first understand and define aerobic organisms. Aerobic organisms are those that... 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
