define monophyletic
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monophyletic monophyletic. adj. 1. (Biology) relating to or characterized by descent from a single ancestral group of animals or plants. 2. (Biology) (of animals or plants) of or belonging to a single stock. 1  Facebook. 2  Twitter.
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- Schizophyta. a division of prokaryotic organisms sometimes considered a class, phylum, or subkingdom; coextensive with the Cyanophyceae; includes cyanobacteria (blue-green algae). animal noun.
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Monohybrid (1) Monohybrid cross, i.e. the cross between parents with different alleles for a single gene locus of interest. (2) The hybrid produced from a monohybrid cross.
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Letters to Nature Most of the 470-million-year history of plants on land belongs to bryophytes, pteridophytes and gymnosperms, which eventually yielded to the ecological dominance by angiosperms 90 Myr ago.e show that there are three monophyletic groups of extant vascular plants: (1) lycophytes, (2) seed plants and (3) a clade including equisetophytes (horsetails), psilotophytes (whisk ferns) and all eusporangiate and leptosporangiate ferns.
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- Lycopodiophyta. (lī'kōpō'dēŏf`ətə) , division of the plant kingdom consisting of the organisms commonly called club mosses club moss,name generally used for the living species of the class Lycopodiopsida, a primitive subdivision of vascular plants.ycopodiophyta. (botany). A division of the subkingdom Embryobionta characterized by a dominant independent sporophyte, dichotomously branching roots and stems, a single vascular bundle, and small, simple, spirally arranged leaves.
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What is the difference between these terms: clade, monophyletic group and taxon? The taxon of aquatic animals is a taxon. A clade is a monophyletic taxon or monophyletic group if you prefer. A monophyletic taxon (or a clade) is defined as a taxon that contains only all descendants of a common ancestor and the common ancestor.
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- medical Definition of Monogenea : a class, subclass, or suborder of parasitic platyhelminthic worms that were formerly usually classified as trematodes but are currently considered to be more closely related to the tapeworms and that comprise flatworms ordinarily living as ectoparasites on a single usually fish host throughout the entire life cycle — compare digenea
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Reading a Phylogenetic Tree: The Meaning of Monophyletic Groups A phylogenetic tree, also known as a phylogeny, is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor.ost phylogenetic trees are rooted, meaning that one branch (which is usually unlabeled) corresponds to the common ancestor of all the species included in the tree.
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- Algae (/ˈaeldʒiː/ ˈældʒiː /or/ ; ˈaelɡiː ˈælɡiː /singular/) alga ˈaelɡə ˈælɡə is an informal term, for a large diverse group of eukaryotes that are not necessarily closely related and. are thus polyphyletic
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- Vorlaeuferspitze: vorläuferspitze an abaxial outgrowth of the apex of the leaf of a, monocot or sometimes considered to be equivalent to the, hyperphyll a more or less well developed terete or unifacial structure at the tip of the, blade.c. f also-cross, zone, hypophyll, lamina leaf, base, ligule, petiole and. stipule
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- The current consensus is that chordates are monophyletic, meaning that the Chordata include all and only the descendants of a single common ancestor, which is itself a chordate, and that craniates' nearest relatives are cephalochordates.or the leaf shape, see Cordate. Chordates (/ˈkɔrdeɪts/) are animals possessing a notochord, a hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail for at least some period of their life cycles.
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Monocyte Monocyte subpopulations. 1  The classical monocyte is characterized by high level expression of the CD14 cell surface receptor (CD14++ CD16− monocyte) 2  The non-classical monocyte shows low level expression of CD14 and additional co-expression of the CD16 receptor (CD14+CD16++ monocyte).
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monohybrid Definition of monohybrid. : an individual or strain heterozygous for one specified gene.
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- mono- a combining form meaning “one, single, lone” (monochromatic; monogamy), “containing one atom or group of a given kind” (monoamine). Also, esp. before a vowel,mon-.
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- The monohybrid cross. A monohybrid cross is the study of the inheritance of one characteristic. You need to be able to explain a monohybrid cross in terms of genotypes. This can be done by writing down: the phenotype and genotype of the parents; the gametes which each can produce; the ways in which the gametes can combine
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What is the difference between these terms: clade, monophyletic group and taxon? A monophyletic taxon (or a clade) is defined as a taxon that contains only all descendants of a common ancestor and the common ancestor. On the following picture, only the Taxon 1 is a clade. To cite few examples of clades: Primates, Eukaryotes, Rosacea, Reptilomorpha, Rodentia.
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- [ pro″to-zo´ah ]. a subkingdom (formerly a phylum) comprising the unicellular eukaryotic organisms; most are free-living, but some lead commensalistic, mutualistic, or parasitic existences.
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Clade Clade: from the Greek word klados, meaning branch. A branch of biological taxa or species that share features inherited from a common ancestor. A single phyletic group or line.Also cladus. Monophyletic group of taxa. Clade Boreo eutheria. Group III: Euarchontoglires (Supra primates). Super order Euarchonta ...lade: from the Greek word klados, meaning branch. A branch of biological taxa or species that share features inherited from a common ancestor. A single phyletic group or line.
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- sporophyte (ˈspɔːrəʊˌfaɪt; ˈspɒ-) n (Botany) the diploid form of plants that have alternation of generations. It develops from a zygote and produces asexual spores. Compare gametophyte. sporophytic adj. spo•ro•phyte (ˈspɔr əˌfaɪt, ˈspoʊr-) n. the form of a plant in the alternation of generations that produces asexual spores.
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- The current consensus is that chordates are monophyletic, meaning that the Chordata include all and only the descendants of a single common ancestor, which is itself a chordate, and that craniates' nearest relatives are cephalochordates.t has also proved difficult to produce a detailed classification within the living chordates. Attempts to produce evolutionary  family trees  give results that differ from traditional classes because several of those classes are not monophyletic. As a result, vertebrate classification is in a state of flux.
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megakaryocyte Megakaryocyte definition, a large bone-marrow cell having a lobulate nucleus, regarded as the source of blood platelets. See more.
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- Definition of MONONUCLEAR PHAGOCYTE SYSTEM. : a system of cells comprising all free and fixed phagocytes together with their ancestral cells including monocytes and their precursors in the bone marrow —called also reticuloendothelial system.ADVERTISEMENT. noun. : a system of cells comprising all free and fixed phagocytes and especially ....efinition of MONONUCLEAR PHAGOCYTE SYSTEM. : a system of cells comprising all free and fixed phagocytes together with their ancestral cells including monocytes and their precursors in the bone marrow —called also reticuloendothelial system. ADVERTISEMENT.
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- The resulting tree suggests that the molluscs and annelids form a monophyletic lineage and unites the molluscan taxa to a monophyletic group. Therefore, the result supports the Eutrochozoa hypothesis and the monophyly of molluscs, and indicates early acquisition of segmented body plans in arthropods.o test further hypotheses on the phylogenetic relationships among annelids, molluscs, and arthropods, and the ingroup relationships within the major spiralian taxa, we combine the molecular and morphological data sets and subject the combined data matrix to parsimony analysis.
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Monocots, Dicots and Eudicots DistinguishedBen G. Bareja, Oct. 2012 Monocots, Dicots and Eudicots Distinguished. Ben G. Bareja, Oct. 2012. The monocots or monocotyledons are plants that comprise of a common ancestor and all its descendants. Also called Monocotyledoneae or Liliopsida, they are flowering plants under phylum Anthophyta (also called Magnoliophyta or Angiospermae) of the kingdom Plantae.
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- Lesson Summary. A monocot is a type of flowering plant that is characterized by having a single cotyledon, trimerous flowers, and parallel leaf veins. Monocots are economically important as food sources for both humans and animals, and they grow in a variety of habitats, including the tropics.
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Chapter 23: Terms In cladistics, a taxon that represents an approximation of the ancestral condition; the outgroup is related to the ingroup (the members of the group under study) but separated from the ingroup lineage before they diversified. paraphyletic group.