chimera /chi·me·ra/ (ki-mir´ah)
chimera
chimera [ki-me´rah]
1. an organism with different cell populations derived from different zygotes of the same or different species, occurring spontaneously or produced artificially.
2. a substance created from proteins or genes of two species, as by genetic engineering.chimer´ic
chi·me·ra (k -mîr  , k -)n. 1. One who has received a transplant of genetically and immunologically different tissue. 2. Twins with two immunologically different types of red blood cells. |
chimera
[kimir′ə, kīmir′ə]
Etymology: Gk, khimaros, fire-breathing monster
an organism carrying cell populations derived from two or more different zygotes of the same or different species. Chimeras include recipients of tissue grafts from other individuals. Compare mosaic.
Chimera
Any individual or molecule derived from 2 or more species
Embryology An individual that results when an embryonic part of one animal is grafted onto another, or a part from an animal is grafted onto another body
Genetics An organism with 2 or more cell lines, genotypes, or karyotypes descended from at least 2 zygotes—a very rare phenomenon seen only in twins, resulting from chorionic vascular anastomoses, transplantation, or double fertilization, and subsequent participation of both fertilized meiotic products in one developing embryo; all hermaphrodites should be karyotyped to evaluate possible chimerism
Transplantation The term chimera was also once used for a person who had received transplanted tissue—e.g., bone marrow—that survived in the recipient
Embryology An individual that results when an embryonic part of one animal is grafted onto another, or a part from an animal is grafted onto another body
Genetics An organism with 2 or more cell lines, genotypes, or karyotypes descended from at least 2 zygotes—a very rare phenomenon seen only in twins, resulting from chorionic vascular anastomoses, transplantation, or double fertilization, and subsequent participation of both fertilized meiotic products in one developing embryo; all hermaphrodites should be karyotyped to evaluate possible chimerism
Transplantation The term chimera was also once used for a person who had received transplanted tissue—e.g., bone marrow—that survived in the recipient
chimera [ki-me´rah]
an organism whose body contains different cell populations derived from different zygotes of the same or different species, occurring spontaneously or produced artificially.
chimera, chimaera
1. a mythological, fire-spouting monster with a lion's head, goat's body and serpent's tail.
2. an animal whose body contains different cell populations derived from different zygotes of the same or different species, occurring spontaneously or produced artificially; i.e. an individual composed of a mixture of genetically different cells.
chimera protein
see fusion protein.
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