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germ in Biological Dictionary

Sex cells

... germ cells are progenitors of the gametes. These ... either eggs or sperm . Plants do not have a germ line set aside in ... sex cell n. A germ ... Sex cells have only half the number of ...

Secondary oocyte

... or rarely ocyte, is a female gametocyte or germ cell involved in reproduction. In other words, ... oocyte is part of the ovary development. The germ cells produce a primordial germ cell (PGC) which becomes ... secondary ...

Reticulocyte Lysate

... Using Rabbit Reticulocyte Lysate or Wheat germ Extract. ... Hi all, Did Someone used the ... paths to "Rabbit Reticulocyte Lysate /Wheat germ Extract Combination System" ... Life Science ... Reticulocyte Lysate Translation Systems. Wheat germ Extract—Cell-Free Translation ... TNT® Coupled ...

Primary oocyte

... or rarely ocyte, is a female gametocyte or germ cell involved in reproduction. In other words, ... oocyte is part of the ovary development. The germ cells produce a primordial germ cell (PGC) which becomes ... Oogonium ...

Oogenesis

... begins soon after fertilization, as primordial germ cells travel from ... oogenesis n. The ... formed in ... During oogenesis , the primordial germ cell produces an oogonium with a diploid ... embryonic and fetal development, when diploid germ ... posted to reproduction ovogenesis ...

Mesoderm

... One of the three germ layers found in the embryos of animals more ... ... mesoderm n. The middle embryonic germ layer, lying between the ectoderm and the ... muscle, bone, and the ... Mesoderm ... germ layer n. Any of three cellular layers, the ...

Germline

... developing individual is the line (sequence) of germ cells that have genetic material that may be passed to a child. 3 germ line development in mammals. 4 Differentiation of primordial germ cells ... These genes play a role in ...

Germ line

... individual is the line (sequence) of germ cells that have genetic material that may be ... these cells will differientate into primordial germ cells, migrate to the location of the gonad, and form the germ line of the animal. Chapters in the ...

Endoderm

... Endoderm , is one of the germ layers formed during animal embryogenesis. ... gastrula stage of the ... 57. The primary germ layer endoderm is derived from : ... Sonic ...... Endoderm : The innermost of the three primary germ layers of ... posted to ectoderm endoderm ...

Ectoderm

... emerges first and forms from the outermost of the germ layers. Some of the ectoderm cells ... cranial and ... the outermost of the three germ layers, or masses of cells, which appears early ... In animal embryos, the ectoderm is the outer germ layer of the embryo, formed ... GO:0007398 : ...

Sperm cells

... offers some far ... Sperm are the male gamete produced from the germ cell line. The germ cells of the male are called spermatogonia, which oddly means sperm ...

Oogonia

... oogonium n. , pl. -nia or -niums . A cell that arises from a primordial germ cell and differentiates into an oocyte in the ovary ... Oogonia ... ... ... Sciences > biology > cell biology > cells > germ cells > ova > oogonia ... Resources in oogonia : No resources ...

Haploid Cell

... haploid ( ) adj. Having the same number of sets of chromosomes as a germ cell or half as many as a somatic cell ... normal chromosome complement of germ cells . ... ... Genetics. The process of cell division in sexually ...

Gastrulation

... phyla. Gastrulation is followed ... During gastrulation , the germ layers of an embryo are formed and the body plan ... Gastrulation ... ... Gastrulation is the rearrangement process that forms the three germ layers and ... During gastrulation the endoderm and mesoderm move to ...

Cephalization

... of sense organs ... - Lab 2 & 3. Kingdom: Animalia ... Three germ Layers - Ectoderm, Mesoderm, Endoderm. Bilateral symetry, Cephalization ... ... bilateral symmetry with obvious cephalization , three embryonic germ layers with ... is the first step toward cephalization and development ...

Transgenic mouse

... tissue specific expression in transgenic mice where possible. ... must be reiterated by mating with non- transgenic mice to demonstrate germ ... Transgenic mice have become powerful reagents for modeling genetic disorders, ... To generate a standard transgenic mouse , a bacterial ...

Telomerase

... The telomeres contain condensed DNA material, ... telomerase ( ) n. An enzyme that is found in the telomeres of chromosomes in germ cells, stem cells, and most cancer cells and that preserves the Telomerase is an enzymatic ribonucleoprotein complex that acts as a ...

Spermatogonia

...... Strong mosaicisms towards expansions were already observed in spermatogonia before meiosis. ... Spermatogonia differentiate from primordial germ cells and are ... spermatogonia . Definition from Wiktionary, a free dictionary. Jump ... Retrieved from "http://en.wiktionary.org /wiki/ ...

Spermatid

... expressed CYPT genes. ... Spermatid information including symptoms, causes, diseases, symptoms, treatments, and other ... Spermatid : Male germ cells derived from the haploid ... Information about spermatid in the free online English dictionary and ... spermatid - an immature ...

Somatic cell

... with a donor nucleus . It can be used in embryonic stem cell research, ... ... where somatic refers to cells of the body (not the germ cells , sperm or eggs) ... become a specific cell type, it is now possible to reprogram adult somatic cells ... somatic cell nuclear ...

Skeletal muscle

... Muscle is the contractile tissue of the body and is derived from the mesodermal layer of embryonic germ cells. Muscle cells contain contractile filaments that move past each other and change the size of the cell. They ... Myostatin suppresses ...

Sex chromosomes

... mammal to birds Australian research has found A human somatic cell has two sex chromosomes : XY in male and XX in female. A human germ cell has one sex chromosome : X or Y in a sperm and X in an egg. ... ...

Primitive streak

... star ... " Primitive Streak by The Subdudes is mainly Alternative Country, quite Americana, ... ... of the primitive streak . Genesis of the germ layers. Genesis of the notochord. Location of the epiblast cell target and the development of the primitive streak ... Definition of ...

Muscle contraction

... ' implies shortening, ... Muscle is the contractile tissue of the body and is derived from the mesodermal layer of embryonic germ cells. Muscle cells contain contractile filaments that move past each other and change the size of the cell. They ... Any theory of muscle ...

Muscle

... Muscle is the contractile tissue of the body and is derived from the mesodermal layer of embryonic germ cells. Muscle cells contain contractile filaments that move past each other and change the size of the cell. They ... Main article: Muscle ...

Macronucleus

... in P. tetraurelia), divides ... During sexual events, the old macronucleus is degraded and replaced by a new one, ... Each cell contains a germ line micronucleus and a somatic macronucleus . ... All endogenous RPB3 genes in the macronucleus could be replaced by RPB3-HA (Fig. ... ...

Involuntary muscle

... spinal nerve centres, with no direct ... Muscle is the contractile tissue of the body and is derived from the mesodermal layer of embryonic germ cells. Muscle cells contain contractile filaments that move past each other and change the size of the cell. They ... Control of ...

Inner cell mass

... of cells, termed the inner cell mass , which is the source ... The inner cell mass contains the cells that can generate cells of all germ ... Blastocyst differentiation Inner cell mass and not trophoblast shell is ... Murine inner cell mass -derived lineages depend ...

Haploid

... tetraploidy is a type of polyploidy and is common in plants, and ... haploid ( ) adj. Having the same number of sets of chromosomes as a germ cell or half as many as a somatic cell ... Sperms are haploid but when they are ... ploidy n. A multiple of the basic number of ...

Gonads

... organ that makes gametes. The gonads in males are the testes and the gonads in females are the ovaries. The product, gametes, are haploid germ cells. For example, spermatozoon and egg cells are gametes. Although medically the gonad term can refer to either male gonads (testicles) or ...

Germplasm

... a collection of genetic resources for an organism. For plants, the germplasm may be stored as a seed collection or, for trees, in a nursery. germ plasm or polar plasm is a zone found in the cytoplasm ... [edit] Germplasm , other usage. Germplasm , the collection of genetic resources ...

Gametogenesis

... . From Sperm and Egg to Embryo. Genetic Regulation of Development ... Topics on Gametogenesis . The Ark of Life. What's so special about germ cells? ... Encyclopedia article about Gametogenesis . Information about Gametogenesis in the Columbia Encyclopedia, Computer Desktop ...

Fertilized egg cell

... (Redirected from Fertilized egg ) Jump to: navigation, search ... Programmed cell death (Apoptosis) · Stem cells · germ line development. Organogenesis ... Information about Fertilized egg cell in Free online English dictionary. ... The fertilized egg ...

Cardiac muscle

... is one of three major types of muscle ... Muscle is the contractile tissue of the body and is derived from the mesodermal layer of embryonic germ cells. Muscle cells contain contractile filaments that move past each other and change the size of the cell. They ... Magnification & ...

Blastoderm

... or reptilian egg and gives rise to the germinal disk from Trilaminar embryo A trilaminar embryo (or trilaminary blastoderm , or trilaminar germ disk ) is an early stage in the development of triploblastic Information about blastoderm in the free online English dictionary and ... ...

Acoelomate

... View of whole fluke organism. ... ... or body cavity. • Two Layered Acoelomate (ay-SEE-luh-MATE) "without ... Three Layered Acoelomate – three germ ... three-layered Acoelomate lacking a ... What is a acoelomate , definition of acoelomate , meaning of acoelomate , acoelomate anagrams, ...
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