遺傳圖譜幫助培育更優(yōu)良的大豆(2)
來源:滬江聽寫酷
2010-02-09 00:00
遺傳圖譜幫助培育更優(yōu)良的大豆
Hints:
chromosomes
phytates
phosphorus
fungus
Jerilyn Watson
Bob Doughty
Hints:
chromosomes
phytates
phosphorus
fungus
Jerilyn Watson
Bob Doughty
Genes are organized along chromosomes. These contain molecules of DNA, the building blocks of life.
The researchers found that the sets of chromosomes in soybeans have copied themselves at least twice. It happened almost 60,000,000 years ago and again 13,000,000 years ago.
Over time, genes develop…
基因是位于染色體上的?;蛏嫌性S多DNA分子,是這些分子構成了生命的主體。研究者發(fā)現(xiàn),大豆上的染色至少復制了兩次。它在6000萬年前發(fā)生過,而字1300萬年前再次發(fā)生。多年過去了,基因的發(fā)展也在改變,也叫基因變異??茖W家能說出這些改變是什么時候發(fā)生的。這些變異的數(shù)據(jù)能幫助研究小組估算出小豆染色體的復制的發(fā)生時間…
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