首页
登录
职称英语
We inherit our DNA from our parents. DNA is shuffled, recombined and【B1】____
We inherit our DNA from our parents. DNA is shuffled, recombined and【B1】____
游客
2023-07-16
31
管理
问题
We inherit our DNA from our parents. DNA is shuffled, recombined and【B1】______from one generation to another. Each individual on this earth received 23【B2】______of chromosomes from their parents(23 from dad and 23 from mom). Because DNA is【B3】______to a certain degree from one generation to the next, it is possible to【B4】______family lines by【B5】______specific markers.
The【B6】______of the Earth are more closely related than what it is generally thought. Today there are 6【B7】______people living on this planet. If we do some math, and we consider a generation to be about 25 years, 30 generations ago, every individual living today would have over 1 billion【B8】______ancestors. The estimated world population for the year 1250 AD was 400 million people.
This means that the number of actual ancestors for each individual is smaller than the number of possible ancestors and【B9】______.These common ancestors were able to transmit specific markers【B10】______.
The Molecular Genealogy Research Group is very interested in people with known genealogies【B11】______.Being 18 and older and having at least a four-generation pedigree chart are the only two qualifications in order to take part in this study. [br] 【B4】
选项
答案
trace
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2841665.html
相关试题推荐
A、TakeanintensivecourseinGerman.B、GivehisgreetingstoLinda’sparents.C
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroug
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroug
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroug
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroug
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroug
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroug
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroug
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroug
Childrenmodelthemselveslargelyontheirparents.Theydosomainlythroug
随机试题
TodaythewriterHansChristianAndersenisknownasawriterofstoriesfor
A.{2,3) B.{0,1,4} C.φ D.U
法国大革命前夕和大革命期间先后出现的立法机构,按照时间顺序排列是()。①国民议
按照《证券监督管理条例》和《证券公司治理准则》的要求,证券公司董事会决议内容违反
下面关于脂肪酸合成的叙述,正确的是A:合成过程在线粒体,关键酶是乙酰CoA羧化酶
研究历史要“有一分证据说一分话”,如同警察破案,必须掌握足够的证据,使各种证据之
加拿大研究人员对北美不同地区平均年龄29.4岁的308位志愿者(其中198位是女
(2020年真题)某公司决定通过提高产品质量和性能来战胜竞争对手、提高市场份额。
输送下列介质的管道中,必须进行泄漏性试验的有()。A.高度危害流体管道
最新回复
(
0
)