blastula वाक्य
उदाहरण वाक्य
मोबाइल
- A zygote initially develops into a hollow sphere, called a blastula, which undergoes rearrangement and differentiation.
- Epiboly in zebrafish is the first coordinated cell movement, and begins once the embryo has completed the blastula stage.
- It includes a blastula, gastrula and a four armed echinopluteus stage that forms an important part of the zooplankton.
- The first three to four months are spent with the blastula in suspended development before it implants itself in the uterus.
- In the mammalian blastocyst ( term for mammalian blastula ) there are three lineages that give rise to later tissue development.
- One concern is that blastula creation in SCNT-based human stem cell research will lead to the reproductive cloning of humans.
- These fossils show the cleavage stage, and the blastula, but the identity of the adult forms is not yet unknown.
- From the stage of having 128 cells, the embryo develops a cavity, the blastocoele, and is called a blastula.
- The blastocyst must not be confused with the blastula; even though they are similar in structure, their cells have different fates.
- The anterior / posterior axis lies along the animal / vegetal axis set up during nuclei at the vegetal pole of the blastula.
- Fish embryos go through a process called mid-blastula transition which is observed around the tenth cell division in some fish species.
- Combining the expression of transcription factors and locational positioning of the blastula cells can lead to the development of induced functional organs and tissues.
- A ball of cells characteristic of animals, the blastula, is ultimately produced in this manner, with a maximum of 256 cells.
- Mammals at this stage form a structure called the blastocyst, characterized by an inner cell mass that is distinct from the surrounding blastula.
- Dissection of " Tarebia granifera " showed blastula stage embryos in the brood pouches of snails as small as 8 mm shell height.
- The parts that are autotomised or the buds may develop directly into fully formed larvae or may develop through a gastrula or even a blastula stage.
- A common feature of a vertebrate blastula is that it consists of a layer of blastomeres, known as the blastoderm, which surrounds the blastocoele.
- The first multicellular hollow ball of stem cells, the blastula, separates into distinct germ layers during gastrulation-the ectoderm, mesoderm, endoderm.
- During gastrulation the cells of the blastula undergo coordinated processes of cell division, invasion, and / or migration to form two ( triploblastic ) tissue layers.
- Since the embryonic development of the blastula within egg is also very similar to that of echinoderms, this suggests a close phylogenetic link between the two groups.
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