30 results found

Search Results for: bacteriophage

Bacteriophage

Definition noun, plural: bacteriophages A virus capable of infecting a bacterial cell, and may cause lysis to its host... Read More

Defective bacteriophage

Defective bacteriophage a temperate bacteriophage mutant whose genome does not contain all of the normal components and... Read More

Capsid

Capsid Definition A capsid is a three-dimensional proteinaceous capsular shell around a virus that encloses the viral... Read More

Biological Viruses

The prime directive of all organisms is to reproduce and survive and this also applies to viruses. Apparently, viruses are... Read More

Early development

Early development An early stage in the life cycle of a bacteriophage (a virus which infects bacteria) that occurs after... Read More

Fluctuation test

Fluctuation test (Science: investigation) test devised by Luria and Delbruck to determine whether genetic variation in a... Read More

Phage

Definition noun, plural: phages (1) A bacteriophage: a virus capable of infecting a bacterial cell, and may cause lysis to... Read More

Putative

Putative Definition What is putative? The word putative denotes to a supposition that is based on what is commonly... Read More

Okazaki fragment

Definition noun, plural: Okazaki fragments Relatively short fragment of DNA synthesized on the lagging strand during DNA... Read More

Restriction enzyme

Definition noun, plural: restriction enzymes An enzyme that catalyzes the cleavage of DNA at restriction sites, producing... 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

Plaque assay

Definition noun An assay used for virus isolation and purification, and to determine viral titers. Supplement The plaque... Read More

Eclipse period

Eclipse period The time between infection by (or induction of) a bacteriophage, or other virus, and the appearance of mature... Read More

Frameshift mutation

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

Microbe

Microbe Definition What is a microbe? How do we define microbes?  Microbes refer to microorganisms that cannot be seen by... Read More

Lysogenic cycle

Lysogenic cycle (Science: virology, microbiology) One of the ways of virus reproduction. ( other one:lytic... Read More

Cloning vector

Definition noun A piece of DNA where foreign DNA fragment is inserted through recombinant DNA technology. Supplement Cloning... Read More

Eclipse phase

Eclipse phase --> eclipse period The time between infection by (or induction of) a bacteriophage, or other virus, and the... Read More

Genome

Genome Definition What is a genome? As defined in biology, a genome is a complete set of deoxyribonucleic acid (DNA) within... Read More

Lysozyme

Definition noun, plural: lysozymes A glycosidase that assists in the hydrolysis of glycosidic bond between N-acetyl muramic... Read More

Viability

Whether we talk about “a travel plan” or “a science experiment” or “the chances of a pregnancy reaching its... Read More

Suppressor-sensitive mutant

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

Host cell

Host Cells Definition What is a host cell? A host cell is a living cell that serves as a shelter and a food source to the... Read More

Vector

Vector Definition When one thinks of vectors one may think of many different things. This is because a vector can be... Read More

Escherichia coli

Definition A Gram-negative, facultatively anaerobic, rod-shaped species belonging to the family... Read More

S layer

Definition noun A single layer of about 5 to 25 nm in thickness, comprised of identical proteins (glycoproteins) surrounding... Read More

Temperate phage

Definition noun, plural: temperate phages A bacteriophage that displays lysogenic life cycle in contrast to virulent phage... Read More

Affinity

Definition noun, plural: affinities (1) (taxonomy) The resemblances in structure between two organisms or between biological... Read More

Virus

Definition noun, plural: viruses A submicroscopic infectious agent that is unable to grow or reproduce outside a host... Read More

Lysogenic conversion

Lysogenic conversion --> lysogeny (Science: virology) The ability of some phages to survive in a bacterium as a result of... Read More