DNA is the genetic material found within the cell nuclei of all living things. In mammals the strands of DNA are grouped into structures called chromosomes. With the exception of identical siblings (as in identical twins), the complete DNA of each individual is unique. ...
However, DNA fingerprinting cannot discriminate between identical twins. Most people are aware of the use of DNA fingerprinting in forensic medicine. Samples gathered at a crime scene can be compared with the DNA of a suspect to prove his or her presence at or involvement with the crime. The ...
根据第三段中“Since identical twins have almost the same DNA, researchers can figure out how heritable a fear is by comparing how often specific phobias appear in identical twins as opposed to other brothers or sisters.(由于同卵双胞胎拥有几乎相同的DNA,研究人员可以通过比较特定恐惧症在同卵双胞胎和...
the same DNA (45)___ the parent.Clones are always produced (46)___natural means in the shape of identical twins.The most common process takes DNA from one cell and puts it in (47)___ hollowed-out egg.Chemicals and electricity are then used to encourage the new DNA to fuse with ...
DNA很吸引人! Except for identical twins,除了同卵双胞胎,each living thing has its own unique DNA.每种生物自己的的DNA都是唯一的。 Your DNA is in every part of your body.你的DNA存在于身体的各个部分。Your finger has the same DNA as your hair.你的手指和你的头发有一样的DNA,Your bones have...
who shar e nearly 100 percent of their DNA, aren't attracted to th e sam e peopl e , sug gesting that it's our experiences , mor e than o ur genes , that determin e whether w e find som conc hot or not ."W e estimat e that an individual's aesthetic(审美的)preference...
the resulting (15)___ are identical twins (clones) containing dna from both the mother and the father. dolly, on the other hand, is the result of another type of cloning that produces an animal carrying the dna of only one parent. using somatic cell (16)___ transfer, scientists transfe...
also make clones in the lab.They often clone genes in order to study and better understand them.To clone a gene,researchers take DNA from a living creature and insert it into a carrier like bacteria or yeast (酵母菌).Every time that carrier reproduces,a new copy of the gene is made. ...
科目: 来源: 题型:014 Except ___ identical twins, each living thing has its own unique DNA. [ ] A.at B.to C.for D.with 查看答案和解析>> 科目: 来源: 题型:014 Your DNA comes ___ your parents. [ ] A.from B.at C.with D.in 查看答案和解析>> 科目: 来源: 题型...
In fact,the study showed that even identical twins,who share nearly l00 percent of their DNA, aren’t attracted to the same people,suggesting that it’s our experiences,more than our genes,that determine whether we find someone hot or not. “We estimate that an individual’s aesthetic(审美...