Glossary of terms used on this site

Glossary of biology.

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Glossaries

Term Main definition
dihybrid
Glossaries - Biology glossary

result of a cross between two true-breeding parents that express different traits for two characteristics

dimer
Glossaries - Biology glossary

chemical compound formed when two molecules join together

dimerization
Glossaries - Biology glossary

(of receptor proteins) interaction of two receptor proteins to form a functional complex called a dimer 

dioecious
Glossaries - Biology glossary

describes a species in which the male and female reproductive organs are carried on separate specimens

dipeptidase
Glossaries - Biology glossary

protease that breaks down peptides to single amino acids; secreted by the brush border of small intestine

diphyodont
Glossaries - Biology glossary

refers to the possession of two sets of teeth in a lifetime

diploblast
Glossaries - Biology glossary

animal that develops from two germ layers

diplontic
Glossaries - Biology glossary

diploid stage is the dominant stage

directional selection
Glossaries - Biology glossary

selection that favors phenotypes at one end of the spectrum of existing variation

disaccharide
Glossaries - Biology glossary

two sugar monomers that are linked together by a glycosidic bond.

discontinuous variation
Glossaries - Biology glossary

inheritance pattern in which traits are distinct and are transmitted independently of one another

discussion
Glossaries - Biology glossary

section of a scientific paper in which the author interprets experimental results, describes how variables may be related, and attempts to explain the phenomenon in question

dispersal
Glossaries - Biology glossary

allopatric speciation that occurs when a few members of a species move to a new geographical area

dissociation
Glossaries - Biology glossary

release of an ion from a molecule such that the original molecule now consists of an ion and the charged remains of the original, such as when water dissociates into H+ and OH

distal convoluted tubule (DCT)
Glossaries - Biology glossary

part of the renal tubule that is the most distant from the glomerulus

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