12:06 Sep 20, 2018 |
English to Polish translations [PRO] General / Conversation / Greetings / Letters | |||||||
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| Selected response from: Frank Szmulowicz, Ph. D. United States Local time: 16:01 | ||||||
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Summary of answers provided | ||||
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5 | the |
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2 | masywny, masywnie zbudowany |
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Discussion entries: 7 | |
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masywny, masywnie zbudowany Explanation: . -------------------------------------------------- Note added at 25 mins (2018-09-20 12:31:59 GMT) -------------------------------------------------- Komodo dragons are proportionately more thickly built because they are larger and the larger an animal is the thicker its limbs must be. - https://www.quora.com/How-do-you-compare-a-Komodo-dragon-to-... |
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the the Explanation: Transcription of the lecture: Here we have — on this slide we have a stick insect. We have a little fish, a rather gorgeous salamander, the lovely Komodo dragon — big fan of Komodo dragons, the zebra finch — all of those animals, in fact those precise ones — which represent a huge swathe of the animal system — can do something that mammals can’t. Does anyone know what it is? I think I heard it, all of these animals, including the zebra finch, can all have virgin birth There are zebra finches, females that have been kept in captivity — never been anywhere near a male — and yet they can lay eggs that will give life — give birth. Mammals can’t do that. You have to have a male and a female in mammalian reproduction Actually that seems fairly straightforward We kind of think, “yes, of course you do” but why? This is one of those examples of an experiment that was so beautifully designed that you kind of think oh god that’s so obvious isn’t it once someone’s done it beautiful. Work from Azim surrani in Cambridge in the 1980s. What he did was he took a mouse egg and took out the nucleus and then he would put back into that egg. Either two sperm nuclei, or two egg nuclei, or an egg and a sperm. All those situations were genetically identical so that whether the egg received two egg nuclei, or two sperm nuclei, or an egg and sperm nucleus, it was exactly the same situation in terms of DNA sequence. Then he would put the eggs back into pregnant female mice. If he used two egg nuclei, no live mice. If you use two sperm nuclei, no live mice. But if you used an egg nucleus and a sperm nucleus, live mice! http://visibleorder.com/epigenetics/ |
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