355 results found

Search Results for: base

Base

Definition noun, plural: bases (1) (molecular biology) The nucleobase of a nucleotide involved in base pairing, as of a DNA... 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

Nucleobase

Definition noun plural: nucleobases (biochemistry) The base in the nucleic acid, e.g. purines and pyrimidines Details ... Read More

Base pair substitution

Definition noun, plural: base pair substitutions A type of mutation involving replacement or substitution of a single... Read More

Base analogue

Base analogue (Science: biochemistry) a chemical which resembles a nucleotide base. They can substitute the purine and... Read More

Base pair

Base pair (Science: molecular biology) two nitrogenous bases (adenine and thymine or guanine and cytosine) held together by... Read More

Frameshift mutation

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

Base pairing

Base pairing (Science: molecular biology) The specific hydrogen bonding between purines and pyrimidines in double stranded... Read More

General acid-base catalysis

General acid-base catalysis a catalytic reaction that involves the tranfer of a proton to or from anon-water... Read More

Deoxyribonucleic acid

Deoxyribonucleic Acid (DNA) Definition A nucleic acid refers to any of the group of complex compounds made up of linear... Read More

Baseline

Baseline (Science: anatomy) a line approximating the base of the skull, passing from the infraorbital ridge to the midline... Read More

Complementary base pairing

'''complementary base pairing The standard arrangement of bases in nucleotides in relation to their opposite pairing, such... Read More

Base units

Base units The fundamental units of length, mass, time, electric current, thermodynamic temperature, amount of substance,... Read More

Base-pairing rule

Base-pairing rule - the rule stating that in dna, cytosine pairs with guanine and adenine pairs with thymine add in rna,... Read More

Transfer ribonucleic acid

Definition noun plural: transfer ribonucleic acids trans•fer ri•bo•nu•cle•ic ac•id, ˈtɹænsfɝ... Read More

Adenine nucleotide

Definition noun plural: adenine nucleotides A nucleotide wherein the nucleobase is adenine Details Overview A nucleotide... Read More

Translation

In biology, translation is a step in protein biosynthesis where a genetic code from a strand of mRNA is decoded to produce a... Read More

Nucleotide

Reviewed by: Todd Smith, PhD Nucleotide Definition A nucleotide is regarded as the basic building block of... Read More

Nucleic acid

Definition noun plural: nucleic acid nu·cle·ic ac·id, nuˈkleɪ.ɪk ˈæsɪd Any of the group of complex compounds... 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

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

Trophic level

In ecology, a trophic level pertains to a position in a food chain or ecological pyramid occupied by a group of organisms... Read More

Polynucleotide

Definition noun plural: polynucleotides pol·y·nu·cle·o·tide, ˌpɒlɪˈno͞o′klē-ə-tīd A biopolymer comprised of... Read More

Ribonucleic acid

Ribonucleic Acid Definition noun (uncountable), ribonucleic acids ri·bo·nu·cle·ic ac·id, raɪboʊnjuːkliːɪk... Read More

Genetic Mutations

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

Thymidine monophosphate

Definition noun plural: thymidine monophosphates (biochemistry) A nucleotide composed of thymine, deoxyribose and a... Read More

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

Chemical Composition of the Body

In order to fully understand the mechanisms of human physiology, it is important to have an understanding of the chemical... Read More

Phosphodiester bond

Phosphodiester Bond Definition Phosphodiester bonds are the backbone of the strands of nucleic acid present in the life... Read More

Transcription (biology)

In biology, transcription is the process of transcribing or making a copy of the genetic information stored in a DNA strand... Read More

Basic

Basic 1. (Science: chemistry) Relating to a base; performing the office of a base in a salt. Having the base in excess, or... Read More

Pyrimidine

Definition noun plural: pyrimidines py·rim·i·dine, py·rim·i·dine A heterocyclic aromatic compound that presents as... Read More

Base Insertion

A form of dna mutation where one or more of the dna bases of a dna chain is added to another, changing the genetic coding of... Read More

Chromatin

Chromatin Definition What is chromatin in a cell? Chromatin is a complex of nucleic acids (e.g. DNA or RNA) and proteins... Read More

Deoxyadenosine triphosphate

Definition noun plural: deoxyadenosine triphosphates (biochemistry) A nucleotide composed of adenine, deoxyribose and... Read More

Deoxyadenosine monophosphate

Definition noun plural: deoxyadenosine monophosphates (biochemistry) A nucleotide composed of adenine, deoxyribose and a... Read More

Uridine monophosphate

Definition noun plural: uridine monophosphates (biochemistry) A nucleotide composed of uracil, ribose and a phosphate... Read More

Wobble

wobble In molecular biology, unorthodox pairing between the base at the 5' end of an anticodon and the base that pairs with... Read More

Logarithm

Logarithm (Science: mathematics) One of a class of auxiliary numbers, devised by john napier, of Merchiston, Scotland... Read More

Ionic bond

Definition noun plural: ionic bonds A type of chemical bond in which atoms, ions, or molecules are held together by... Read More