340 results found

Search Results for: base

Base-pairing rule

Base-pairing Rules Definition The base-pairing rules are rules that apply during the pairing between one purine and one... Read More

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

Anticodon

The anticodon is a special code on tRNA that matches up with the instructions on the mRNA thus making sure that the... 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

Genome

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

Nucleic acid

Nucleic Acid Definition A nucleic acid refers to any of the group of complex compounds consisting of chains of monomers of... Read More

Baseline

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

Deoxyribonucleic acid

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

Complementary base pairing

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

Translation

Translation, in general, is the conversion of something into another form, such as a word from one language to another. But... 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

Nucleotide

Nucleotide Definition A nucleotide is regarded as the basic building block of nucleic acid (e.g. DNA and RNA). A nucleic... Read More

Stipulate

Stipulate Definition Stipulate meaning: Stipulate typically refers to a specific feature or characteristic of a plant's... 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

Replication

Replication, in the general sense, is to create a copy or a duplicate. Thus, in biology, replication is commonly associated... 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

Phosphate

Phosphate is an essential inorganic compound composed of a phosphorus atom bonded to four oxygen atoms. This molecular... Read More

Polynucleotide

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

Nucleosome

Nucleosome Definition Every organism is made of deoxyribonucleic acid, also known as DNA. DNA is made up of numerous... 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

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

Thymidine monophosphate

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

Pyrimidine

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

Conjugate

Conjugate Definition Conjugate in a broader sense refers to related pairs of substances or entities that are interconnected... 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

Phosphodiester bond

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

Plankton

Plankton is a diverse group of typically microscopic, aquatic organisms suspended in the water column and rely on water... 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

Nucleoside

Nucleoside Definition A nucleoside is a nitrogenous base (purine or pyrimidine) bound to a pentose sugar ribose or... Read More