Tag: tumblr

• 2016-07-20

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• ainawgsd: Chemera and Mosaic Insects Part 2-Butterflies and Moths A chimera (also spelled chimaera) (from the creature Chimera in Greek mythology) is a single organism composed of cells from different zygotes. This can result in male and female organs, two blood types, or subtle variations in form. Animal chimeras are produced by the merger of multiple fertilized eggs. If the different cells have emerged from the same zygote, the organism is called a mosaic. Chimeras are formed from at least four parent cells (two fertilised eggs or early embryos fused together). Each population of cells keeps its own character and the resulting organism is a mixture of tissues. Chimeras can often breed, but the fertility and type of offspring depends on which cell line gave rise to the ovaries or testes; varying degrees of intersex differences may result if one set of cells is genetically female and another genetically male. A gynandromorph is an organism that contains both male and female characteristics, authorities say. The term gynandromorph, from Greek “gyne” female and “andro” male, is mainly used in the field of entomology, though it has also been observed in arthropods and birds as well. Another way that chimærism can occur in animals is by organ transplantation, giving one individual tissues that developed from two genomes. For example, a bone marrow transplant can change someone’s blood type. Normally, chimærism is not visible on casual inspection; however, it has been detected in the course of proving parentage and may be more common than was believed before the advent of DNA testing.

  2016-07-20

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• Color the Universe via NASA http://go.nasa.gov/2afnaB0

  2016-07-20

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• seagirl49: River Blue © Susan Kramer 2016 All Rights Reserved Willamette River, Portland, Oregon US PDX

  2016-07-19

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• 2016-07-19

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• 2016-07-19

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  via http://bit.ly/29KGbug

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• markruffalo: The editing in this one is priceless! Take a look.

  2016-07-19

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  via Interdisciplinary Postmodern Liberal Democratic Salon Peace Love Beauty Wisdom Balance Understanding Imagination Consciousness Bliss

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• It is challenging on the east coast to see the Milky Way as clearly as our ancestors used to. This is my favorite location; some of the darkest skies here, Spruce Knob Lake, WV: a full 360º Pano [OC][20148x 5808] via /r/spaceporn http://bit.ly/29N6CuZ

  2016-07-19

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• The Twitter of spaceporn. (All hot posts) . via /r/spaceporn http://bit.ly/29N6Vpy

  2016-07-19

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• Orion Nebula js http://bit.ly/29KkdaG

  2016-07-19

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• Milky Way rising over a dead tree in Banks Peninsula, New… http://bit.ly/2a8ImZK

  2016-07-19

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• Supernova js http://bit.ly/29Lluuu

  2016-07-19

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• Early summer Milky Way over the beach on the northern coast of… http://bit.ly/29Y6kEM

  2016-07-19

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• Comet on 14 July 2015 – NavCam [700 X 700] via /r/spaceporn http://bit.ly/29Rs83n

  2016-07-19

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