Operon: Definition, Structure, and Function
Operon Definition An operon is a cluster of functionally-related genes that are controlled by a shared operator. Operons consist of multiple genes grouped together with …
Molecular Biology
Nucleotide: Definition, Structure, and Function
Nucleotide Definition A nucleotide is an organic molecule that is the building block of DNA and RNA. They also have functions related to cell signaling, …
Nucleoid: Definition and Function
Nucleoid Definition The nucleoid is the space within a prokaryotic cell where the genetic information, called the genophore, is found. Prokaryotes are divided into bacteria …
Nucleic acid: Definition, Structure, and Function
Definition A nucleic acid is a chain of nucleotides that stores genetic information in biological systems. It creates DNA and RNA, which store the information …
Nonsense Mutation: Definition, Outcome, and Example
Nonsense Mutation Definition A nonsense mutation occurs when the sequence of nucleotides in DNA is changed in a way that stops the normal sequence of …
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Messenger RNA (mRNA): Definition, Type, and Function
Messenger RNA Definition Messenger ribonucleic acids (mRNAs) transfer the information from DNA to the cell machinery that makes proteins. Tightly packed into every cell nucleus, …
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Monosomy: Definition, Types, and Example
Monosomy Definition Monosomy is an example of aneuploidy, which is an imbalance in chromosome numbers. This means that we can either find extra or missing …
What is Missense Mutation?
Missense Mutation Definition A missense mutation is a type of point mutation in which a different amino acid is placed within the produced protein, other …
Lytic Cycle: Definition and Steps
Lytic Cycle Definition The lytic cycle is named for the process of lysis, which occurs when a virus has infected a cell, replicated new virus …
Lysogenic Cycle: Definition and Types
Lysogenic Cycle Definition The lysogenic cycle is a method by which a virus can replicate its DNA using a host cell. Typically, viruses can undergo …