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8 godz. temu · Gap junctions use protein complexes known as globules to connect one cell to another, and to connect vesicles within a cell to the outer cell membrane. [7] Globules are made of smaller protein components called connexins, [8] [9] and six connexins form a channel called a connexon.
8 godz. temu · Highest frequencies. See List of R1a frequency by population. Map showing frequency of R1a haplogroup in Europe. Haplogroup R1a, or haplogroup R-M420, is a human Y-chromosome DNA haplogroup which is distributed in a large region in Eurasia, extending from Scandinavia and Central Europe to Central Asia, southern Siberia and South Asia.
8 godz. temu · The tiger ( Panthera tigris) is a member of the genus Panthera and the largest living cat species native to Asia. It has a powerful, muscular body with a large head and paws, a long tail and orange fur with black, mostly vertical stripes. It is traditionally classified into nine recent subspecies, though some recognise only two subspecies, mainland Asian tigers and the island tigers of the ...
