antiparallel

A term used to describe the opposite orientations of the two strands of a DNA double helix; the 5′ end of one strand aligns with the 3′ end of the other strand….

List of Biology Words Starting with A

A A (aminoacyl) site A form DNA a(n)- A-DNA A-factor A-protein A23187 Ab initio gene prediction ab- abaxial Abbreviated New Drug Application ABC proteins abdomen abdominal abetalipoproteinemia abiogenesis abiotic abiotic factors abiotic stress ablation abnormal ABO blood group aboral end abortion abortive abortive transduction abscess abscise abscisic acid abscission zone absolute zero absorbance optics absorptio…

deoxyribonucleic acid

(DNA) An antiparallel double helix of nucleotides (having deoxyribose as their sugars) linked by phosphodiester (sugar-phosphate) bonds to adjacent nucleotides in the same chain and by hydrogen bonds to complementary nucleotides in the opposite chain. The fundamental substance of which genes are composed. Deoxyribonucleic acid (DNA) is a nucleic acid — usually in the form of a double helix — that contains the genetic instructions monitoring the…

zinc finger

Configuration of a DNA-binding protein that resembles a finger with a base, usually cysteines and histidines, binding a zinc ion. Discovered in a transcription factor in Xenopus but present in a large number of different proteins. Below is from http://www.biochem.ucl.ac.uk/bsm/prot_dna/family_descriptions/zincfinger_family/zincfinger_family.html Characteristics of the family: Function: The DNA-binding motif is found as part of transcription reg…