视频英文解说翻译:
这些储存基因密码的束状物被称作染色体,其中23条染色体来自母亲,23条染色体来自父亲。每个染色体都是由微小的DNA链构成的,DNA分子里面就携带着基因密码。每个显微镜下的染色体都包含超过6英尺的DNA。基因-这种可以创建DNA的变化的化学代码模式可以让孩子的变得独一无二。跟一只鸡的基因数量大致相同,需要大概20000-25000个基因才能形成人体。我们体内都有完整的一套从父母那传承下来的基因组。我们的基因决定我们不是鱼,不是树木,而是人类,而且是能够很好的决定我们将会成为那种人。每个特殊的长相都是有基因决定的,比如说一个女婴孩是否会遗传妈妈的头发抑或是爸爸的眼睛的颜色或者是其长长的手指。显性基因和隐性基因让我们每一个人无论从相貌特征上还是基因上都显得独一无二。父母对我们的基因形成做出的贡献是相同的,但是孩子的性别是完全由父亲决定的。第23对染色体的特殊功能就是决定孩子的性别。来自母亲的性染色体总是相同的,但是来自父亲的染色体却有两种。
遗传基因将会决定她的长相,性格(固执还是灵活),是否擅长音乐,甚至是承受疾病的能力如:癌症,肺炎或者是糖尿病。她的生活将受她的朋友,家庭和环境的影响,但是她将来的很多事情都已经被先天决定了。
受精后不久,受精卵将沿着输卵管到达子宫的安全地方,开始其第一次旅程。大约在受精后一天,受精卵将第一次分裂。染色体开始第一次复制,使整个遗传代码都有相同的副本。在分裂的过程中,细胞继续向输卵管游动。在4-5天后,这个球状物体将会长到大概100个细胞并且开始分成两组。其他的细胞将会形成胎盘-生命的支撑系统。相反,小内圈就成了胚胎本身。在这个期间内,内层细胞全是干细胞。干细胞有很强大的能力让任何一个细胞变成200多种不同类型的细胞,而这些细胞也可能会成为身体的任何部分。
视频英文解说原文:
The genetic code stored in these bundles called chromosomes, 23 from the mother and 23 from the father. Each chromosome is made of tiny caul strand of DNA. This molecule shapes like double hills carries on genetic code. Each microscopy chromosome contains over 6 feet of DNA, a pattern of chemical code creates the twisting of DNA and holds the kid are uniqueness are the genes. It takes between 20000 and 25000 genes to make a human roughly the same number of a chicken all of us have complete set from each of our parents deep and lookly every cell in our bodies. Our genes are solvent structions that tell us to become human rather than a fish or tree has wellness deciding exactly what kind of person will be. Each gene was combination genes is responsible for specific trees, a baby girl her mother’s hair or strong or her father’s eye color and long fingers. Some genes were being dominant; others completely hidden make each one of us physically and genetically unique. Our parents make equal contribution to most of our genetic make up, but the sex of the child is determined solely by the father. The 23rd pair of chromosomes has the specific Job of deterring sex. The sex chromosome comes from the mothers’ always the same, tag eggs, but the chromosome comes from fathers could be one of two types ex for girl or why a much smaller chromosome for a boy
And x sperm fertilization raise from this parents and there going to have a girl。 The genes she inherited have already create determine her looks and much of her character were she stubborn and intelligent or good at music and even her vulnerability to certain diseases like cancer, scatefreelia or dire babies. Exact course of her life all depend on such things like her friends, family and the environment. but the instant feudalization much of her future is pre-determined.
Soon after the feudalization the egg begins its journey, travailing along the fallopian tube, the safety of the uterus. About a day after feudalization, the egg divides for the first time, every cellmon of the body need its own copy of genetic blueprint .the chromosomes reproduce first, making identical copy of entire genetical code. When the two sets of chromosomes apart, the nucleus and save the divides. This process of division continues as compressive cells travels down the fallopian tube。 after 4 or 5 days, the tiny ball called blast cysts has grown to 100 cells and begins to separate into two sets. The other cells will become the placenta. The life support system while the inner circle will become the embryo itself. At this stage, the inner cells are lonely stem cells. Stem cells have the remarkable capacity to turn into anyone of over 200 different types of cells and they can grow to become any part of the body