同父异母姊妹DNA鉴定相似率应达到多少

有这样一句话：人和猿的基因同源性为98.4%,就是这1.6%的差异决定了我现在是在码字而不是坐在动物园里吃香蕉.
还有一种说法,所有人类的基因有99%以上是相同的.
显然,亲姊妹间的基因差异要更小.
不要小瞧这看似不大的差异.人类有30亿对碱基,如此庞大的基数使得哪怕再低的基因差异也能产生各异的表型.

Hassan and Amir are half-brothers, but have a different fate. They grew up together, but one is a master, a servant. Weak inferiority jealousy because Amir, Hassan kite ability and quality, framed Hassan, and off he. Because of the war, Amir and his father came to the United States, since the two no contact. The second half of the book is written in the hero the redemption of my soul. He went to great lengths to find Hassan's son, solar, chased the heart drift has long kite, to become a dignified and imposing man, life gate finally open to him. Amir's end, by comparison, is happiness. He finally understand each other's meaning -- at the cost of life. Book the emotion is not only the family, not just a friendship, as long as they are able to sink the heart to be read to the people, will be one stick moved, also refracts he had mood. Perhaps the end of the story is not perfect, perhaps somewhat bitter and sour. But such is life, mistakes, missed, and then to save life.

1．D
2．C
3．为了让“我”继续读书参加高考，大哥有意让“我”去工地上做又苦又累的活，从而使“我”重新要读书。
4．（1）放弃继续读书考大学，而宁愿去当泥瓦工，使大哥寄托在“我”身上的希望落空。
　 （2）弟弟想重新读书让大哥看到了的希望；看到自己的“苦肉计”方法即将成功的窃喜之情。
5．AC
（主观题意对即可）

孩子的基因父亲给了一半 母亲给了一半 如果这样说科学上根本解释不通 所以是 封建思想的影响

没有
因为父亲的基因型是：XY,母亲是：XX
XY XX
/
XX XX XY XY
所以儿子 是XY中的Y来自父亲,X来自母亲
而女儿是XX,一个来自父亲,一个来自母亲
因为母亲不同,所以没有相同的基因