这种分裂导致两个胚胎共享相同的DNA序列,因此两者的性别、血型、外貌等遗传特征高度一致。但受孕期环境、表观遗传因素等影响,两者可能在性格、疾病易感性等方面存在差异。 二、科学术语与同义表达 在学术领域,同卵双胞胎的规范术语为 Monozygotic twins(单卵双胞胎),强调胚胎分裂的生物学机制。...
相关知识点: 试题来源: 解析 B答案:B核心短语/词汇:identical twins:同卵双胞胎翻译:同卵双胞胎共享他们所有的DNA。解析:A表示;B表示DNA;C表示BBS;D表示ABS。根据常识可知同卵双胞胎是由同一个受精卵发育而来的,因此他们共享所有的DNA,所以答案是B。 反馈 收藏 ...
根据文章开头第一句“Identical twins (同卵双胞胎) may not be exact copies at the DNA level after all.(同卵双胞胎在DNA水平上可能并不完全相同。)”这是科研人员的新发现。是文章主题句,后面详细阐述研究过程的详情,与A项内容Some Identical Twins Don't Have the Same DNA(有些同卵双胞胎并不拥有相同的...
Who might want a twin DNA test Parents naturally want to know all they can about their children, and with twins this includes their zygosity. The twins themselves may also want to find out more information about their genetic make-up and their similarities. Whilst the twins are still infants...
British prosecutors want more time before filing rape charges against one of two identical twins because DNA evidence doesn't rule out either man as a suspect.
No. While there are stories of twins dying within hours of each other, most identical twins die years apart. They also, for the most part, die for different reasons. DNA does not perfectly determine what diseases a person will carry, and lifestyle choices have an impact as well. Do ident...
Identical twins (同卵双胞胎) may not be exact copies at the DNA level after all. Normally, identical twins differ by 5. 2 genetic changes. Researchers shared their new finding in Nature Genetics.Identical twins are also called monozygotic twins (单卵双胞胎). They come from a single egg. ...
B Identical twins(同卵双胞胎) may not be exact copies at the DNA level after all.Normally, identical twins differ by 5.2genetic changes. Researchers shared their new finding in Nature Genetics.Identical twins are also called monozygotic twins. They come from a single egg. That egg forms an em...
illustratedinidentical twins,whoshow as they age increasing differences in the way that their identical [...] project-syndicate.org project-syndicate.org 这可以在同卵双胞胎身上得到很好的说明,随着年纪的增长,他们各自DNA由环境造成的印记差异也会越来越大。
Identical twins can be strikingly similar in their appearance, but this is not always true due to environmental factors and not genetics alone. Many identical twins are relatively easy to tell apart. Indeed, plenty of parents of twins will resort to twin DNA testing to know for sure. Also ...