19 results found

Search Results for: nucleotide deletion

Nucleotide deletion

Definition noun A deletion of a single nucleotide causing a shift in the reading frame of the codons in the mRNA, thus, may... Read More

Frameshift mutation

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

Mutation

Mutation is a permanent, heritable change in the nucleotide sequence or the process by which such a change occurs in a gene... 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

Deletion mutation

Definition noun, plural: deletion mutations (genetics) A type of mutation wherein one or few nucleotide base pairs are... Read More

Allele

Allele Definition What are alleles? An allele is a term coined to describe a specific copy of a gene. Genes, the DNA... Read More

Small-scale mutation

Definition noun, plural: small-scale mutations (genetics) A type of mutation characterized by a change of one or few... Read More

Point mutation

Definition noun, plural: point mutations (genetics) A small-scale mutation characterized by a change of only one nucleotide... 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

Transversion

Definition noun, plural: transversions (genetics) A small-scale mutation characterized by the replacement of a purine by... Read More

Substitution mutation

Definition noun, plural: substitution mutations (genetics) A small-scale mutation characterized by a substitution of one or... Read More

Transition

Definition noun, plural: transitions (genetics) A small-scale mutation characterized by the replacement of a purine by... 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

Insertion (genetics)

In genetics, insertion refers to the type of mutation characterized by the insertion of one or few nucleotide base pairs to... Read More

Gene

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

Nuclease

Definition noun, plural: nucleases An enzyme that catalyzes the hydrolysis of nucleic acids to oligonucleotides or... Read More

Genetic Mutations

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

Large-scale mutation

Definition noun, plural: large-scale mutations (genetics) A type of mutation several nucleotides of a gene within a large... Read More

Genetic mutations

Definition noun Changes in the nucleotide sequence of the genetic material (i.e. DNA, or RNA, in the case of viruses), which... Read More