Example sentences of "[to-vb] at the [adj] stage " in BNC.

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1 In a comparison between blocking and non-blocking strains of mice it was shown that the potential of embryos to arrest at the 2-cell stage is determined solely by the genotype of the egg and occurs irrespective of the paternal or embryonic contribution ( 18 ) .
2 All of these are still very cumbersome to use at the present stage of development but there is no doubt that they will improve .
3 Thus , unlike social class , social network does not require us to project at the initial stage a fully-fledged theory of social structure on to the linguistic data .
4 To assist at the pre-tendering stage all contractors invited , need to be aware and able to question any aspect on the contract .
5 Because the embryos begin to swim at the blastula stage they must be trapped in a nylon net to keep them still , the square holes providing micro-aquaria through which sea water is slowly passed .
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