Molecular Biology: Definitions and explanations page 1 PDF | Download eBooks
Learn molecular biology terms with definitions and explanations, molecular biology terminologies (Page 1) for science degree programs.
- What is AAUAAA? 
 Aauaaa is an important hexamer sequence polyadenylation signal in animals, that causes polyadenylation and cleavage about ...
- What is A Site (Ribosomal)? 
 The a site in ribosome is the entry point for the 'aminoacyl trna ', (except for ...
- What is A Site (RNA Polymerase)? 
 A' site in the rna polymerase is an active site of the rna polymerase, where the ...
- What are Abortive Transcripts? 
 Abortive transcripts are short rna transcripts, about 6 nt long, that are produced at prokaryotic promoters. ...
- What is Ac? 
 Ac is a group of active maize transposing elements, which carry on transposition in a wide ...
- What is Accommodation? 
 Accommodation is a term that is used to describe the position of aminoacyl-trna, which does not ...
- What is Acidic Domain? 
 Acidic domain, as the name implies, is an amino acid rich, transcription activating domain in cells. ...
- What is Aconitase? 
 Aconitase is an enzyme, which, in apoprotein form (iron lacking form) binds to the iron response ...
- What is Activation Region I (ARI)? 
 Activation region i is the region of cap subunit that binds to the ctd (carboxyl-terminal domain) ...
- What is Activation Region II (ArII)? 
 Activation region ii is the region of cap subunit, that binds to the ntd( amino terminal ...
- What is Activation Site? 
 Activation site is the specific site on an aminoacyl-trna synthetase, which activates the amino acid, resulting ...
- What is Activator? 
 An activator is a protein (transcription factor) that activates transcription by binding to an activator-binding region ...
- What is Activator-Binding Site? 
 In prokaryotes, activator binding site is that part of the dna to which transcription activator (transcription ...
- What is Adenine? 
 Dna glycosylases are a group of enzymes that are responsible for base excision repair. adenine dna ...
- What is Adenosine Deaminase Acting on RNA (ADAR)? 
 Adar gene (adenosine deaminase acting on rna) in humans, encodes the double stranded rna specific enzyme, ...
- What is A-DNA? 
 A-dna is a form of dna, a biologically active double helical structure, which is assumed in ...
- What is Affinity Chromatography? 
 Affinity chromatography is a chromatography method, used to separate biochemical mixture that involves a highly specific ...
- What is Affinity Labeling? 
 Affinity labeling is a strategy to chemically modify an amino acid residue, within a ligand-binding site ...
- What is A1492 and A1493? 
 A1492 and a1493 are two universally conserved bases in 16s rrna that are critical for codon ...
- What is Ago3? 
 Ago3 is an argonaute protein that is predicted to have mrna binding activity. then, in association ...
- What is Alarmone? 
 Alarmone is a compound that is produced in an organism, in response to harsh environmental factors, ...
- What is Alkylation? 
 Alkylation is basically the transfer of an alkyl group (carbon containing group) from one molecule to ...
- What is Allele-Specific RNAi? 
 Rnai (rna interference) or sequence-specific posttranscriptional gene silencing, is induced by small double stranded rnas, called ...
- What is Allolactose? 
 Allolactose consists of monosaccharides d-glucose and d-galactose linked through a β1-6 glycosidic linkage, to form a ...
- What is Allosteric Protein? 
 An allosteric protein is one, with multiple ligand binding sites. the binding of a molecule at ...
- What is Alternative Splicing? 
 Alternative splicing or differential splicing is means splicing of the same pre-rna in more than one ...
- What is Alu Element? 
 An alu element is a short fragment of the dna (containing the agct sequence), which is ...
- What is Amber Codon? 
 Amber codon is a stop codon (a codon responsible for the termination of translation). there are ...
- What is Amber Suppressor? 
 Amber suppressor is a mutant allele, coding for a trna, bearing an anticodon to recognize the ...
- What is Amino Acid? 
 Amino acids, the building blocks of proteins, are organic compounds, made up of amine and carboxyl ...
- What is Aminoacyl-amp? 
 Aminoacyl-amp is a complex, comprising of an activated amino acid linked to the phosphate group of ...
- What is Aminoacyl-tRNA? 
 The aminoacyl-trna (also called charged trna or aa-trna) is a transfer rna, which has its cognate ...
- What is Aminoacyl-tRNA Synthetase? 
 An aminoacyl-trna synthetase is the enzyme that is responsible for attaching a trna to its relevant ...
- What is Amino Tautomer? 
 An amino tautomer is the normal tautomer of the nucleotides, cytosine or adenine, found in nucleic ...
- What is Amino Terminus? 
 Amino terminus or n-terminus is that end of a peptide or a protein primary structure, in ...
- What is Amplification? 
 Amplification in genetics is the selective replication of a gene, resulting in the production of more ...
- What is Anabolic Metabolism? 
 Anabolism or anabolic metabolism is the process by which molecules are constructed from simple precursors. they ...
- What is Annealing Of DNA? 
 Annealing of dna in genetics means the process of reuniting the two strands of a denatured ...
- What is Annotated Genes? 
 Annotated genes are those genes, or gene like sequences from the coding regions in a genome, ...
- What is Antibody? 
 An antibody is a large (y shaped) protein, which has the ability to recognize and bind ...
- What is Anticodon? 
 An anticodon is a sequence of three bases in a transfer rna, that are complementary to ...
- What is Anticodon Loop? 
 The anticodon is a three-nucleotide unit, corresponding to the three bases of the mrna codon. this ...
- What is Antigen? 
 Antigen (ag) is a structure or a substance that is recognized and specifically bound by an ...
- What is Antiparallel? 
 In biochemistry, two biopolymers (like the two strands in a dna double helix) are termed as ...
- What is Antirepression? 
 Antirepression is the prevention of repression during transcription, by activators such as histones or other transcription-inhibiting ...
- What is Antisense RNA? 
 Antisense rna (also called antisense transcript, antisense oligonucleotide or natural antisense transcript nat) is a single ...
- What is Antiserum? 
 An antiserum is a human or nonhuman blood serum containing antibodies (either monoclonal or polyclonal), directed ...
- What is Anti σ-Factor? 
 Anti- σ-factor (anti sigma factor) is an antagonist to the sigma factor that acts by binding ...
- What is Anti-Anti σ-Factor? 
 Anti-anti- σ-factor is a protein that causes the release of the σ-factor, from the "anti-σ-factor-σ-factor" complex, ...
- What is Anti-Anti-Anti σ-Factor? 
 Anti-anti-anti- σ-factor is a protein that is associated with the series of sigma factor reactions during ...
- What is Antiterminator? 
 Antiterminator proteins are the proteins used by some pages to regulate the gene expression from one ...
- What is AP-1? 
 Ap-1 stands for the activator protein 1, which is a transcription activator that regulates the expression ...
- What is AP Endonuclease? 
 Ap endonuclease stands for apurinic/apyrimidinic endonuclease, an enzyme that functions in the dna base revision repair ...
- What is APE1 (AP Endonuclease 1)? 
 Human apurinic/apyrimidinic endonuclease 1 (ape1) is a mammalian enzyme, that plays a key role in the ...
- What is AP Site? 
 In molecular genetics and biochemistry, an apurinic or apyrimidinic site (ap site), also called an abasic ...
- What is Aporepressor? 
 An aporepressor is a repressor, without its compressor, in an inactive form. it combines with a ...
- What is Aptamer? 
 An aptamer is a nucleic acid, usually an rna, or it can be a region of ...
- What is Apurinic Site (AP Site)? 
 Apurinic site (ap site) is the location on a dna strand (or in rna sometimes), that ...
- What is Apyrimidinic Site (AP Site)? 
 Apyrimidinic site (ap site) is a site in the dna molecule which does not have a ...
- What is AraC? 
 Arac is a dimeric repressor, that is a negative regulator of the ara operon. one monomer ...
