17 results found

Search Results for: lethal mutation

Lethal mutation definition and example
Definition
Lethal mutation

Lethal Mutation Definition Genetic mutations come from changes in the DNA structure or sequencing in an organism. Often... Read More

Definition
Mutagen

Mutagen Definition What is a mutagen? A mutagen is a substance or agent that causes DNA impairment that results in the... Read More

Definition
Frameshift mutation

Define Frameshift Mutation What is a frameshift mutation? In biology, insertions or deletions of nucleotides in the coding... Read More

mutation definition and example
Definition
Mutation

A mutation is a permanent, heritable change in the nucleotide sequence or the process by which such a change occurs in a... Read More

codon definition
Definition
Codon

What does codon mean? A codon, in biology, is the basic genetic unit of life that acts as the template for the amino acid... Read More

Chromosome Mutations
Tutorial
Chromosome Mutations

Reviewed by: Mary Anne Clark, Ph.D. By nature, the genetic information from both parents is expected to be seen... Read More

Definition
Pleiotropy

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

mosaicism definition and example
Definition
Mosaicism

Cells often go through many divisions before they become a part of an organism’s genetic make-up. This leaves room for... Read More

polymorphism definition
Definition
Polymorphism

Polymorphism Definition The occurrence of two or more different forms or morphs in the population of a species is referred... Read More

Mutant
Definition
Mutant

Definition noun, plural: mutants (1) An organism, gene, or chromosome that is different from the wild type by one or more... Read More

Gene definition
Definition
Gene

A gene is the fundamental, physical, and functional unit of heredity. The genes make up the sequences of DNA (genotypes).... Read More

genetic diversity definition
Definition
Genetic diversity

Genetic Diversity Definition Each species is composed of individuals with their own set of genes. A gene is the inheritance... Read More

diploid definition
Definition
Diploid

Diploid Definition Let's first understand the meaning of the word - diploid. From the words ‘di’, meaning "two", and... Read More

Suppressor-sensitive mutant
Definition
Suppressor-sensitive mutant

suppressor-sensitive mutant A conditionally lethal, host range, bacteriophage mutant that produces nonsense codons and can... Read More

organism definition with example
Definition
Organism

An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and... Read More

Chromosomes X and Y and Sex Determination
Tutorial
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

denaturation definition
Definition
Denaturation

Denaturation Definition In biochemistry, denaturation is defined as a process in which a molecular structure deviates from... Read More