Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

574Maggenti and Gardnerorgan having both excretory and genital functions.mixoploidy n. [Gr. mixis, mingling; aploos, onefold; eidos,like] Having cells with different chromosome numbers incell populations.mnemotaxis n. [Gr. mneme, memory; taxis, arrangement]Movements in which memory plays a part.mode n. [L. modus, measure] The most frequent value of anymeasurable characteristic in a population.modifer genes Genes that affect the phenotypic expression ofgenes at other loci.modification n. [L. modus, measure; facare, to make] Anyvariation caused by non-genetic factors.modioliform a. [L. modiolus, a small measure or drinking vessel;forma, form] 1. In the form of a nave or hub of awheel; more or less globular with truncated ends. 2. (MOLL:Bivalvia) Beaks are not terminal and anteroventral regionforms a slight bulge; shell shaped like the genus modiolus .modulation n. [L. modulare, to measure] 1. Alteration in cellsby environment without change in their basic character. 2.Interactive modification of cells during development.moiety n.; pl. -ties [L. medius, the middle] 1. One of twoequal parts. 2. An indefinite portion.mola n. [L. mola, mill] (ARTHRO: Insecta) In Coleoptera, thethickened and enlarged basal part of the internal ridge ofthe mandible used for grinding. see molar lobe.molar a. [L. mola, mill] 1. Adapted for grinding. 2. (ARTHRO:Crustacea) Pertaining to the grinding surface on the inneredge of the mandibles or jaws.molar lobe (ARTHRO: Insecta) The proximal lobe of the mandiblesused for chewing or grinding. see mola.molar process (ARTHRO: Crustacea) The grinding portion ofthe gnathal lobe of the mandible; pars molaris.molecular biology The study of biological phenomena interms of the physiochemical properties of molecules in acell.molecular genetics The study of genetics at the level of mole-