35 results found

Search Results for: restriction

Restriction enzyme

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

Ecori restriction enzyme

Ecori restriction enzyme (Science: enzyme molecular biology) a commonly-used restriction enzyme (enzyme which will cleave... Read More

Restriction fragments

restriction fragment (Science: molecular biology) The fragments of dNA generated by digesting DNA with a specific... Read More

Cleavage site

Definition noun, plural: restriction sites The site in a polynucleotide chain as to where the restriction enzyme cleaves... Read More

Restriction point

The "point of no return" in the G1 phase of the cell cycle; once a cell proceeds beyond Start, it proceeds through the rest... Read More

New Zealand’s Biodiversity

Written by: Maria Victoria Gonzaga Peer-reviewed by: Cathy Buntting, Ph.D. and Andrea Soanes Why is New... 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

Cohesive end

Definition noun, plural: cohesive ends (molecular biology) A fragment of DNA (often produced by a staggered cut on the DNA... Read More

Sticky end

Definition noun, plural: sticky ends (molecular biology) A fragment of DNA (often produced by a staggered cut on the DNA... Read More

Overhang

Definition noun (molecular biology) Unpaired nucleotide(s) in the end of a DNA molecule, which may be produced by a... Read More

Fetus

The science of Embryology and Fetal development has fascinated mankind since time immemorial. After the embryonic stage, the... Read More

Limitation

1. The act of limiting; the state or condition of being limited; as, the limitation of his authority was approved by the... Read More

Chorion

Chorion Definition The chorion is a membrane that develops around the developing fertilized egg. It begins to develop... Read More

Hypertrophy

Hypertrophy Definition Hypertrophy refers to the enlargement or increase in the size of an organ or tissue due to the... Read More

Agar

What Is Agar? Agar, also called agar agar, is a natural gelling agent derived from seaweed (specifically algae belonging to... Read More

Agretope

Agretope That part of a processed antigen that binds to the major histocompatibility complex molecule; the agretope was... Read More

Hind ii

Hind ii (Science: enzyme molecular biology) first type II restriction endonuclease identified, by Hamilton Smith in 1970.... Read More

Tree

“The biological diversity is plenty if you look around yourself a little closely; with an eye for life!” … People... Read More

Intercalary meristem

The basic structural framework of plants is composed of different types of tissues. Based upon the capacity to divide, the... Read More

RDNA

Definition noun, plural: rDNAs An abbreviation for the following terms: ribosomal DNA recombinant DNA Supplement rDNA can... Read More

Recombinant DNA

Definition noun Genetically-engineered DNA molecule formed by splicing fragments of DNA from a different source or from... Read More

Heterochrony

Definition noun, plural: heterochronies Refers to the rate of morphological transformations accomplish by the developmental... Read More

Silent mutation

A mutation is a change in the nucleotide sequence of a gene or a chromosome. When there is only one nucleotide involved, it... 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

Modification enzyme

modification enzyme (Science: enzyme molecular biology) An enzyme that introduces minor bases into dNA or rNA or that alters... Read More

Cloning

Cloning Definition In biology, cloning is the process of producing similar populations of genetically identical individuals... Read More

Localisation

Localisation 1. The determination of the site or place of any process or lesion. 2. Restriction to a circumscribed or... Read More

Ligase

An enzyme is a catalyst or a chemical produced by cells to speed up a biochemical reaction. It is usually a protein molecule... Read More

Inclusion

Inclusion 1. The act of including, or the state of being included; limitation; restriction; as, the lines of inclusion of... Read More

Missense mutation

What is a missense mutation? Literally speaking, a mutation that changes the meaning of the encoded gene sequence is 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

Residual volume

Residual volume is a term that is most often seen in lung physiology where it is defined as the amount of air remaining in... Read More

Valence electron

What are valence electrons? Why are they significant? Valence electrons definition in chemistry: The electrons in an atom's... Read More

Splase

splase (Science: enzyme) Constructed by genetically fusing the dNA-cleavage domain of foki restriction endonuclease with the... Read More

Terms

Definition noun, plural: terms (biology) (1) The end of the normal gestation period or point at which birth is... Read More