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
外语
Mummies capture our imaginations and our hearts. Full of secrets and magic, they were once people who lived and loved, just as w
Mummies capture our imaginations and our hearts. Full of secrets and magic, they were once people who lived and loved, just as w
admin
2012-12-01
37
问题
Mummies capture our imaginations and our hearts. Full of secrets and magic, they were once people who lived and loved, just as we do today. I believe we should honor these ancient dead and let them rest in peace.
There are some secrets of the pharaohs, however, that can be revealed only by studying their mummies. By carrying out CT scans of King Tutankhamun’s mummy, we were able in 2005 to show that he did not die from a blow to the head, as many people believed. Our analysis revealed that a hole in the back of his skull had been made during the mummification process. The study also showed that Tutankhamun died when he was only 19—perhaps soon after he suffered a fracture to his left leg. But there are mysteries surrounding Tutankhamun that even a CT scanner cannot reveal. Now we have probed even deeper into his mummy and returned with extraordinary revelations about his life, his birth, and his death.
Ten years after ascending the throne, Tutankhamun is dead, leaving no heirs to succeed him. He is hastily buried in a small tomb, designed originally for a private person rather than a king. In a backlash against Akhenaten’s heresy, his successors manage to delete from history nearly all traces of the Amarna kings, including Tutankhamun.
Ironically, this attempt to erase his memory preserved Tutankhamun for all time. Less than a century after his death, the location of his tomb had been forgotten. Hidden from robbers by structures built directly above, it remained virtually untouched until its discovery in 1922. More than 5,000 artifacts were found inside the tomb. But the archaeological record has so far failed to illuminate the young king’s most intimate family relationships. Who were his mother and father? What became of his widow, Ankhesenamun? Are the two mummified fetuses found in his tomb King Tutankhamun’s own prematurely born children, or tokens of purity to accompany him into the afterlife?
To answer these questions, we decided to analyze Tutankhamun’s DNA, along with that of ten other mummies suspected to be members of his immediate family. In the past I had been against genetic studies of royal mummies. The chance of obtaining workable samples while avoiding contamination from modern DNA seemed too small to justify disturbing these sacred remains. But in 2008 several geneticists convinced me that the field had advanced far enough to give us a good chance of getting useful results. We set up two state-of-the-art DNA-sequencing labs, one in the basement of the Egyptian Museum in Cairo and the other at the Faculty of Medicine at Cairo University. The research would be led by Egyptian scientists: Yehia Gad and Somaia Ismail from the National Research Center in Cairo. We also decided to carry out CT scans of all the mummies, under the direction of Ashraf Selim and Sahar Saleem of the Faculty of Medicine at Cairo University. Three international experts served as consultants: Carsten Pusch of the Eberhard Karls University of Tubingen, Germany; Albert Zink of the EURAC-Institute for Mummies and the Iceman in Bolzano, Italy? and Paul Gostner of the Central Hospital Bolzano.
The identities of four of the mummies were known. These included Tutankhamun himself, still in his tomb in the Valley of the Kings, and three mummies on display at the Egyptian Museum: Amenhotep III, and Yuya and Tuyu, the parents of Amenhotep Ill’s great queen, Tiye. Among the unidentified mummies was a male found in a mysterious tomb in the Valley of the Kings known as KV55. Archaeological and textual evidence suggested this mummy was most likely Akhenaten or Smenkhkare.
Our search for Tutankhamun’s mother and wife focused on four unidentified females. Two of these, nicknamed the "Elder Lady" and the "Younger Lady," had been discovered in 1898, unwrapped and casually laid on the floor of a side chamber in the tomb of Amenhotep II (KV35), evidently hidden there by priests after the end of the New Kingdom, around 1000 B. C. The other two anonymous females were from a small tomb (KV21) in the Valley of the Kings. The architecture of this tomb suggests a date in the 18th dynasty, and both mummies hold their left fist against their chest in what is generally interpreted as a queenly pose.
Finally, we would attempt to obtain DNA from the fetuses in Tutankhamun’s tomb—not a promising prospect given the extremely poor condition of these mummies. But if we succeeded, we might be able to fill in the missing pieces to a royal puzzle extending over five generations.
To obtain workable samples, the geneticists extracted tissue from several different locations in each mummy, always from deep within the bone, where there was no chance the specimen would be contaminated by the DNA of previous archaeologists—or of the Egyptian priests who had performed the mummification. Extreme care was also taken to avoid any contamination by the researchers themselves. After the samples were extracted, the DNA had to be separated from unwanted substances, including the unguents and resins the priests had used to preserve the bodies. Since the embalming material varied with each mummy, so did the steps needed to purify the DNA. In each case the fragile material could be destroyed at every step.
The next paragraph is most probably about______.__.
选项
A、how to separate the DNA unwanted substances
B、how different the embalming materials are from mummy to. mummy
C、how to take steps to purify the DNA
D、how to take steps to avoid the destruction of t,he tissue
答案
C
解析
该题为推断题。文章最后一段主要讲述提取木乃伊DNA时应该注意的事项及其原因。其中最重要的是将木乃伊DNA提纯。由此可以推断下一段极有可能讲述如何提纯木乃伊DNA。注意选项A和选项C的区别,将木乃伊DNA与其他物质分离开来的最终目的还是提纯木乃伊DNA。
转载请注明原文地址:https://kaotiyun.com/show/1WaO777K
0
专业英语八级
相关试题推荐
DangersofUsingComputerTerminalsUndoubtedly,thecomputerhasgreatlyincreasedhumanbeing’sworkingcapacityandintelle
DangersofUsingComputerTerminalsUndoubtedly,thecomputerhasgreatlyincreasedhumanbeing’sworkingcapacityandintelle
DangersofUsingComputerTerminalsUndoubtedly,thecomputerhasgreatlyincreasedhumanbeing’sworkingcapacityandintelle
Transformational-generativegrammar(TG)isof______’sgreatcontributiontolinguisticsdevelopment.
Itisthenewsthatallslothshavebeenwaitingfor.ScientistsinGermanyhavefoundthattoomuchexerciseisbadforyouand
Theseniorpartner,OliverLambert,studiedtheresumeforthehundredthtimeandagainfoundnothinghedislikedaboutMitchell
NewdatareleasedtodayfromthePartnershipforaDrugFreeAmericasuggestthatnotonlyaregirlsnowdrinkingmorethanboys
NewdatareleasedtodayfromthePartnershipforaDrugFreeAmericasuggestthatnotonlyaregirlsnowdrinkingmorethanboys
朋友A君,四十余岁,自认为是引导新潮流的电影理论家。实际上成“家”还差那么一丁点。最近著系列小文,专论电影艺术的“物质还原性”。举凡“物质还原性”与吾国电影艺术发展十大关系。因其系列而引起电影理论界注意。何谓电影艺术的“物质还原性”,则未加阐明。更显“十大
现代社会无论价值观的持有还是生活方式的选择都充满了矛盾。而最让现代人感到尴尬的是,面对重重矛盾,许多时候你别无选择。匆忙与休闲是截然不同的两种生活方式。但在现实生适中,人们却在这两种生活方式间频繁穿梭,有时也说不清自己到底是“休闲着”还是“忙碌着”。譬如说
随机试题
_______指一个组织的产品、人员及其活动进入国际范围,对别国的公众产生影响,并需要了解和适应对象国的公众环境的时候,该组织所面对的不同国家、地区的公众对象。
A.脓血便B.便血C.便秘D.流脓E.周期性疼痛
在我国新疆、内蒙古等地一些偏远农村居民的躯干、四肢皮肤发生色素沉着和脱色斑点,伴有周围神经炎症状,患者的手掌和脚跖皮肤过度角化。甚至发展到四肢和躯干,严重者可发展成皮肤癌。调查发现,当地居民饮用的井水中某种化学物质含量过高。该种地方性疾病很可能是
药物不良反应因果关系评定确定程度是采用
项目经济评价指标应遵循的原则包括( )。
信托计划财产属于信托公司的清算财产。()
对产品进行标识的目的是()。
《秋收》是_________民歌。
设当事件A与B同时发生时,事件C也发生,则().
十进制整数100转换成无符号二进制整数是()。
最新回复
(
0
)