思想灵活
发表于 2025-3-26 23:19:05
The description of cell division most dyes. These bodies started by assembling in the middle of the cell and astonishingly they were able, by themselves, to move to two opposite sides, which were later called poles. Even more astonishing was that their movement revealed an impressive order in the distribution of these elements int
意外的成功
发表于 2025-3-27 03:57:51
The maintenance of identity of the chromosome during interphase was accompanied by constancy and var cell division but which disappeared during the “resting stage”? Were they amorphous structures that dissolved and lost their shape and continuity, or did the passage through the resting stage only represent a period in which they modified their outer appearance?
ODIUM
发表于 2025-3-27 08:12:43
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ungainly
发表于 2025-3-27 10:39:03
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Flinch
发表于 2025-3-27 15:52:25
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Relinquish
发表于 2025-3-27 21:30:33
Neurobiology reached the molecular levele to molecular analysis, by studying the amount of RNA in rat cells, before and after training. The technique at that time was in its infancy. It did not allow going further. One had to wait 20 years, as molecular biology became supplied with a series of new tools, to see the arrival of neurobiology as an independent field.
INCH
发表于 2025-3-28 00:14:44
The post-genome era pairs that build the DNA of the 46 chromosomes of humans. These bases are about 3 billion. Suddenly we are confronted with a highway which extends along a colossal stretch of molecular information when seen at the Angstrom level of the component atoms of the DNA bases.
语言学
发表于 2025-3-28 02:23:15
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Liberate
发表于 2025-3-28 07:16:25
IntroductionIt may seem inappropriate to write a book about chromosome research during the last 100 years, when one has just entered the period of post-sequencing DNA. A bird’s eye view of the chromosome, throughout a century of extensive research, may seem superfluous or irrelevant.
愤世嫉俗者
发表于 2025-3-28 12:29:11
The precursorsThree major components seem to condition scientific research: 1) No discovery in science arises from nowhere. 2) No result is independent of its historic and socio-economic period. 3) Every discovery is anchored on the technology available at a given time.