-ia -iasis ibuprofen ideal gas law identical twin identity by descent idiogram idiotypic variation idling reaction Ig IL-1 -ile -illa -illus im- imago immune system immunity immunochemical immunoelectrophoresis immunofluorescence immunoglobulin (Ig) immunoglobulin gene immunohistochemistry immunology immunosorbence implicit memory impotence imprinting impulse in- -in in situ In situ hybridization in vitro in vitro mutagenesis in vitro replication in vitro transcription / in vitro translation in vivo inbreeding inbreeding coefficient (F) inbreeding depression incestuous inclusive fitness incomplete dominance incomplete penetrance incontinence incubate incubation independent assortment inducer inducible operon inducible nitric oxide synthetase (iNOS) induction inductive interaction industrial melanism infectious transfer inferior olive inflammation inflammatory bowel disease inflammatory mediators infra- ingression inhibition inhibitor Inhibitory postsynaptic potential (IPSP) initiation codon initiation complex initiation factors (IF1, IF2, IF3) initiator protein innate behavior inorganic chemistry inosine inositol lipid insect cells insert insertion mutagenesis insertion sequence (IS) insertional translocation insulin inside marker inter- interaction experiments intercalary heterochromatin intercalate intercalating agent interchromosomal recombination intercross interference interference competition interferon intergenic regions intergenic suppression interkinesis interleukin-1 (IL-1) internal control interphase interrupted mating intersex interstitial region intra-allelic complementation intracellular intrachromosomal recombination intragenic suppression intro- introgression intron (intervening sequence) invagination invasiveness inversion inverted repeat (IR) sequence involution iojap ion ion channels Ion-channel-linked receptors ionic bond ionic compound ionization energy ionizing radiation ionophore IPSP IR iron (Fe) IS ischemia -ism iso- isoaccepting tRNA isochromosome isoleucine isogamous isogenic isogenic line isomers isometric growth isoschizomer isothermal reaction isotonic isotope isotopic assay techniques isozyme -itis -ium -ize
