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Morula in Biological News

Female human embryos adjust the balance of X chromosomes before implantation

... of their development: after the embryo had divided into eight cells, the morula stage (a solid cluster of approximately 16 cells) and the blastocyst stage ... of XIST at the eight-cell stage, and the XIST signal grew stronger at the morula and blastocyst stages. "Our results are the first to show that, ...

Human embryonic stem cells developed from 4-cell embryo; world first may lessen ethical concerns

... About 24 hours after fertilisation the egg divides into two cells. Division into four cells occurs after 48 hours. After 96 hours, at the morula stage, the fertilized egg has divided four to five times. During this time the size of the embryo does not increase, so the cells become smaller and ...

Sea cucumbers fast track organ regrowth by healing their wounds

... that sea cucumbers healed up rapidly after receiving a 3 to 5 millimetre cut along the body wall. The repair process involved special cells called morula cells moving to the injury site and full repair was achieved after just a couple of weeks. The cellular events observed during the healing of sea ...
Morula in Biological Definition

Morula

... morula is a stage of embryonic development in ... the 32-cell phase, and the 64-cell phase. The morula is produced by embryonic cleavage , the rapid ... of the zygote with virtually no growth. The morula is a solid ball; after the 64-cell phase, it ...

Blastula

... produced by cleavage of a fertilized ovum and consisting of a spherical layer of cells surrounding a fluid-filled cavity. The blastula follows the morula and precedes the gastrula in the development sequence. A blastula has around 128 cells, with a large central cavity called the blastocoel . Also ...

Blastomere

... is the structure which results from the divisions of a fertilised egg during embryonic development . See also blastocoel blastula morula ...

Developmental biology

... , germ layer , germ plasm , germination , induction , juvenile , larva , maternal effect , mesoderm , metamorphosis , morphogenesis , morula , neoteny , neural development , nymph , ontogeny , oosperm , ovism , paedogenesis , pangenesis , phylogeny , primordium , pupa , rudiment , ...

Embryo

... at a more advanced stage of development and up until birth or hatching. In humans, this is from the eighth week of gestation . Stages : morula -> blastula -> gastrula . See also Embryogenesis Embryology In vitro fertilization Plant embryogenesis Embryo space ...
Morula in Biological Dictionary

Morula

... A morula is an embryo at an early stage of embryonic ... ball contained within the zona pellucida. morula n. , pl. -lae ( ). The spherical embryonic mass ... ESSAIMER CHACUN DANS SA DIRECTION. ... morula has been selected for the SIGGRAPH 2008 Computer ...

Blastula

... in the animal pole of the embryo. The blastula follows the morula and precedes ... blastula n. , pl. -las or -lae ( ). An early ... ... blastula /blas·tu·la/ (blas'tu-lah) pl. ... Day 5: Solid morula develops into hollow, fluid-filled blastula ... 4. What is the ...

Blastomeres

... ? Meaning of blastomere medical term. What does blastomere mean? ... The blastomeres further divide and subdivide to form a multicellular morula in ... Nature is the international weekly journal of science: a magazine style journal that publishes full-length research ... from single ...

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