Detail Evolution and coat colour: Well spotted   Oleh:  [s.n] Jenis: Article from Bulletin/Magazine Dalam koleksi: The Economist (http://search.proquest.com/) vol. 397 no. 8705 (Oct. 2010), page 89. Topik: Evolution; Coat colour; The reaction-diffusion process Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: EE29.63 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel HOW the leopard got his spots is, famously, the subject of one of Rudyard Kipling’s “Just So Stories”. Kipling suggested they were handprints made by the leopard’s human friend. More plausibly, he had an explanation for what the spots are for: to break up the animal’s shape when it is hiding in the dappled light of the forest. These days, the human-handprint theory of the leopard’s spots has fallen out of favour. Instead, a more prosaic idea has gained ground, based on what is known as reaction-diffusion pattern formation, in which chemicals that trigger the differentiation of cells in an embryo interact with one another to produce patterns that are then reflected in the fates of nearby cells. But that, too, has its difficulties. Just how much a process like this can be shaped by natural selection is unclear. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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