chordate -- n. An
animal with a
notochord (a cartilaginous rod that extends the length of the body),
dorsal hollow nerve cord (a fluid-filled tube that runs the length of the body), gill slits or pouches, and a tail at some stage in its life cycle.
Full article >>>ChordatesLancelet Branchio
stoma lanceolatum
Zebrafish Danio rerio
Medakafish Oryzias latipes
Fugu Takifugu rubripes
Frogs
Xenopus laevis
Chicken Gallus gallus
Mouse Mus musculus (Mammalian
embryogenesis) ...
Full article >>>ChordatesLancelet Branchio
stoma lanceolatum
Zebrafish Danio rerio
Frogs
Xenopus laevis
Chicken Gallus gallus
Mouse Mus musculus (Mammalian
embryogenesis) ...
Full article >>>chordates:
animals with rods along their backs, including reptiles, amphibians, birds, and
mammals.
chromatid:
homologous chromosomes joined to each other at the
centromere; present during the
prophase of
mitosis.
chromatin: compacted
DNA and
protein.
Full article >>>Chordates have a
dorsal rather than
ventral nervous system. Several
evolutionary trends occur in
chordates:
spinal cord, continuation of
cephalization in the form of larger and more complex brains, and development of a more elaborate
nervous system.
Full article >>>chordate -
organism having a
notochord at some stage of development - a rigid cartilaginous rod in the back extending from anterior to
posterior; this group includes the
vertebrates.
Full article >>>Chordates (
Phylum Chordata)
During their
embryonic development, all
chordates pass through a stage called the pharyngula [View] with these features: ...
Full article >>>chordate(kor-date)
A member of a diverse
phylum of
animals that possess a
notochord; a
dorsal, hollow nerve cord; pharyngeal gill slits; and a postanal tail as
embryos.
Full article >>>chordates Animals that display a hollow
dorsal nerve cord, gill slits, and a
notochord. Includes the proto
chordates and the
vertebrates.
Full article >>>hh genes have been identified in several other invertebrate
species including the leech and sea urchin (Chang et al.1994) as well as in the cephalo
chordate amphioxus (Shimeld 1999).
Full article >>>The Ciona
genome is one of the smallest and most compact of all
chordate genome and Ciona tadpole represents the most simplified
chordate body plan (the ciona
notochord contain only 40
cells).
Full article >>>Ancient
chordates-forerunners of fish, of frogs, of chickens, of
humans-had a single Hox cluster with probably thirteen genes in them.
Full article >>>: A major
phylum in the
Kingdom Animalia. A
chordate is
characterized by the presence of a
dorsal notochord at some stage of development and a
dorsal hollow
nerve chord.
Chromatid ...
Full article >>>Sponges, Cnidarians, Flatworms, Roundworms
Mollusks, Annelids, Arthropods
Echinoderms,
ChordatesFrog Dissection
Animal Tissues ...
Full article >>>A group of
Metazoans that exhibit indeterminate, radial
cleavage and that develop a
mouth independent of, and at some distance from, the
blastopore. (Echinoderms and
Chordates and related minor
phyla).
Full article >>>'"/>