首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the dat
Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the dat
admin
2012-02-27
65
问题
Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided food for the besieged Jews at Masada some 2 000 years ago. The little tree was sprouted in 2005 from a seed recovered from Masada, where rebelling Jews committed suicide rather than surrender to Roman attackers.
Radiocarbon dating of seed fragments clinging to its root, as well as other seeds found with it that didn’t sprout, indicate they were about 2 000 years old—the oldest seed known to have been sprouted and grown.
Sallon, director of the Louis L. Borick Natural Medicine Research Center at Hadassah Medical Organization in Israel, updates the
saga
of Methuselah in Friday’s edition of the journal Science.
One thing they don’t know yet is whether it’s a boy or girl. Date palms differ by sex, but experts can’t tell the difference until the tree is six or seven years old, Sallon said.
She hopes there’s a chance to use it to restore the extinct Judean date palm, once prized not only for its fruit but also for medicinal uses.
The researchers have had a look at the plant’s DNA, however, and found it shares just over half its genes with modern date cultivars(栽培品种).
"Part of our project is to preserve ancient knowledge of how plants were used," Sallon said in a telephone interview. "To domesticate them so we have a ready source of raw material. "
Her Middle Eastern Medicinal Plant Project is working to conserve and reintroduce plants to the region where they once lived.
"Many species are endangered and becoming extinct. Raising the dead is very difficult, so it’s better to preserve them before they become extinct," she said.
The oldest documented seed to be grown previously was a 1 300-year-old lotus, Sallon said.
The author seems to suggest that ______.
选项
A、the attempt to grow the Judean palm date will end in failure
B、the effort to reintroduce the Judean palm date is sure to pay off
C、the researchers are likely to create a new species of the Judean palm date
D、the researchers stand a chance of success to renew the Judean palm date
答案
D
解析
第五段说Sallon博士希望能够有机会复原已经灭绝的犹太海枣树。第六段说研究人员分析了Methuselah的DNA,但是发现它只有刚刚超过一半的基因和现在枣树品种相同。说明想成功可能不太容易。
转载请注明原文地址:https://kaotiyun.com/show/x7mi777K
0
在职申硕(同等学力)英语
相关试题推荐
儿童甲状腺结节有多少机会是恶性的
除了传统的4P’s以外,服务营销组合还包括以下哪些要素?()
新兴产业的发展障碍有()。
Themediacanimpactcurrentevents.AsagraduatestudentatBerkeleyinthe1960s,Irememberexperiencingtheeventsrelated
A:Youseemtohavealotofworktodoinyouroffice.You’vealwaysbeenworkingovertime.B:______
Facinggrowingcostsandshrinkingtax______,thegovernmentisnowthreateningtocutfundingforenvironmentalprotectionprog
BeforehighschoolteacherKimberlyRughgotdowntobusinessatthestartofarecentschoolweek,shejokedwithherstudents
Theybelievethatthemerchantshadconspiredtounderminethenation’seconomicindependence.
Justoverthreeyearsoldandaboutfour-feettall.Methuselahisgrowingwell."It’slovely."Dr.SarahSallonsaidofthedat
随机试题
结核球是指()
癫痫患者在扫描时,无需选择的是
下列不属于人际传播的基本形式的是()
采用钢筋位置探测仪进行钢筋位置测试,当探头位于()时,其指示信号最强。
根据《注册安全工程师管理规定》,注册安全工程师的义务包括()。
下列不属于生态系统信息传递的是()。
公安编制管理必须坚持的原则有( )。
一棵二叉树中共有80个叶子结点与70个度为1的结点,则该二叉树中的总结点数为
It’sveryinterestingtonotewherethedebateaboutdiversity(多样化)istakingplace.Itistakingplaceprimarilyinpoliticalci
A、Byreadingthescriptwhilewatchingvideos.B、ByenjoyingthePowerPointpresentations.C、Bywatchingthemonebyone.D、Byr
最新回复
(
0
)