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Glossary of terms used on this site

Glossary of biology.

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Glossaries

Term Main definition
rhizoids
Glossaries - Biology glossary

thin filaments that anchor the plant to the substrate

rhizome
Glossaries - Biology glossary

modified underground stem that grows horizontally to the soil surface and has nodes and internodes

rhizosphere
Glossaries - Biology glossary

area of soil affected by root secretions and microorganisms

rho-dependent termination
Glossaries - Biology glossary

in prokaryotes, termination of transcription by an interaction between RNA polymerase and the rho protein at a run of G nucleotides on the DNA template

rho-independent
Glossaries - Biology glossary

termination sequence-dependent termination of prokaryotic mRNA synthesis; caused by hairpin formation in the mRNA that stalls the polymerase

rhodopsin
Glossaries - Biology glossary

main photopigment in vertebrates

rhynchocoel
Glossaries - Biology glossary

cavity present above the mouth that houses the proboscis

rib
Glossaries - Biology glossary

one of 12 pairs of long, curved bones that attach to the thoracic vertebrae and curve toward the front of the body to form the ribcage

ribonuclease
Glossaries - Biology glossary

enzyme that breaks down RNA

ribosomal RNA
Glossaries - Biology glossary

RNA that ensures the proper alignment of the mRNA and the ribosomes during protein synthesis and catalyzes the formation of the peptide linkage.

Synonyms - rRNA
ribosome
Glossaries - Biology glossary

cellular structure that carries out protein synthesis

ring of life
Glossaries - Biology glossary

phylogenetic model where all three domains of life evolved from a pool of primitive prokaryotes

RISC
Glossaries - Biology glossary

protein complex that binds along with the miRNA to the RNA to degrade it

RNA editing
Glossaries - Biology glossary

direct alteration of one or more nucleotides in an mRNA that has already been synthesized

RNA editing
Glossaries - Biology glossary

direct alteration of one or more nucleotides in an mRNA that has already been synthesized