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What else can I help you with?
Where have stem cells come from traditionally?
blastocysts (balls of unspecialised cells which become a baby)
Multicellular organisms are produced from?
Depends on how you look at it: 1) Evolution 2) Eukaryotic sexual reproduction 3) Blastocysts Etc...
Do Lymphocytes known as blastocysts help make antibodies that fight infection?
Lymphocytes are a type of white blood cell that play a crucial role in the immune response, and they include B cells and T cells. B cells, when activated, can differentiate into plasma cells, which produce antibodies that help fight infections. The term "blastocyst" refers to an early stage of embryonic development, not a type of lymphocyte. Therefore, it is B cells that are involved in antibody production, not blastocysts.
What is embryos?
Embryos can be either "fresh" from fertilized egg cells of the same menstrual cycle, or "frozen", that is they have been generated in a preceding cycle and undergone embryo cryopreservation, and are thawed just prior to the transfer. The outcome from using cryopreserved embryos has uniformly been positive with no increase in birth defects or development abnormalities,[1] also between fresh versus frozen eggs used for intracytoplasmic sperm injection (ICSI).[2] Children born from vitrified blastocysts have significantly higher birthweight than those born from non-frozen blastocysts.[3] When transferring a frozen-thawed oocyte, the chance of pregnancy is essentially the same whether it is transferred in a natural cycle or one with ovulation induction.[4]
What is Fresh embryos?
Embryos can be either "fresh" from fertilized egg cells of the same menstrual cycle, or "frozen", that is they have been generated in a preceding cycle and undergone embryo cryopreservation, and are thawed just prior to the transfer. The outcome from using cryopreserved embryos has uniformly been positive with no increase in birth defects or development abnormalities,[1] also between fresh versus frozen eggs used for intracytoplasmic sperm injection (ICSI).[2] Children born from vitrified blastocysts have significantly higher birthweight than those born from non-frozen blastocysts.[3] When transferring a frozen-thawed oocyte, the chance of pregnancy is essentially the same whether it is transferred in a natural cycle or one with ovulation induction.[4]
How many totipotent cells does a 5 week old embryo have?
Embryonic stem cells refer to pluripotent cells that are generally derived from the inner cell mass of blastocysts (day 5). Stem cells have been derived from gonadal ridges and mesenteries (3200 to 4000) extracted from aborted five-to-nine week old human embryos.
How many weeks into pregnancy does the zygote appear?
For humans, a zygote will become a blastocyst after about four days. A human zygote typically exists for only four or five days. After becoming a blastocyst, the cells becomean embryo.See the related links below for more information about zygotes and blastocysts.
What is 486?
Mifepex is the brand name for mifepristone, which is a Progesterone and Glucocorticoid Antagonist. It is mainly used in Medical Abortions as it causes a decrease in progesterone, which results in detachment of the blastocysts from the endometrial lining of the cervix. It's commonly given with a PDE1 to allow expulsion from the uterus, as well. Mifepristone at a lower dose is also available in some Asian countries for use as emergency contraception.
What is Mifeprex RU-486?
Mifepex is the brand name for mifepristone, which is a Progesterone and Glucocorticoid Antagonist. It is mainly used in Medical Abortions as it causes a decrease in progesterone, which results in detachment of the blastocysts from the endometrial lining of the cervix. It's commonly given with a PDE1 to allow expulsion from the uterus, as well. Mifepristone at a lower dose is also available in some Asian countries for use as emergency contraception.
How old does a zygote have to be to get stem cells?
Stem cells are typically obtained from embryos that are a few days old, known as blastocysts. At this stage, the embryo has developed into a hollow ball of cells with an inner cell mass that contains embryonic stem cells. These cells can be extracted and grown in laboratories for research and potential therapeutic purposes.
What has the author Allyn J Waterman written?
Allyn J Waterman has written: 'The differentiation of entire young rabbit embryos in omental grafts' 'Giant cells in omental grafts of whole rabbit embryos' 'The capacity for independent self-differentiation exhibited by isolated primordia of the rabbit embryo transplanted to the omentum' 'Heteroplastic transplantations of embryonic tissues of rabbit and rat' 'Development of young rabbit blastocysts in tissue culture and in grafts'
What is the answer to the brain teaser come come come come?
come forward
