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孩子像妈妈还是爸爸,医生教你简单推测法

发布日期:2024-07-02 09:54:50编辑:森林


除了孩子的健康和性别,一般准爸爸准妈妈猜测最多的是孩子将来会像谁,当然,这种猜测相比关于孩子健康的担忧要轻松、愉悦很多。虽然对于天下所有的父母来说,只要是自己的孩子,无论漂亮与否,聪明与否,像妈妈还是像爸爸,都不会影响他们对孩子满满的爱。
 
有这样一个故事:货郎为了养家糊口远走他乡,有一天在大街上忽然遇到了同样多年未归的同乡,得知同乡正好要回老家去。货郎大喜,便拜托同乡给家中的儿子带点东西回去。 
 
同乡说:“我不认识你家孩子啊!”
 
货郎得意地说:“好认得很,咱村最漂亮的那个就是我儿子。”
 
谁知,同乡回去后,在村子里转了好几圈,怎么都觉得自己的儿子最漂亮,于是便将东西给了自己的儿子。
 
当然,这只是一个笑话,却反映了天下父母对子女无限的爱。虽然孩子生出来像谁对于父母来说并不重要,但难免去猜测、幻想,既然如此,那我就说说基因的遗传规则吧。
 
眼睛形状
 
父母的眼睛形状对孩子的影响显而易见。对于孩子来讲,眼形、眼睛的大小是遗传自父母的,而且大眼睛相对小眼睛而言是显性遗传。只要父母双方有一个人是大眼睛,生大眼睛孩子的可能就会大一些。
 
单眼皮还是双眼皮 
 
一般来讲,单眼皮与双眼皮的人结婚,孩子极有可能是双眼皮。所以,一些孩子出生时是单眼皮,成年后又会变成双眼皮。据统计,在婴幼儿中双眼皮的比例不过才20%,中学生是40%,大学生大约占到50%。但如果父母都是单眼皮,一般孩子也会是单眼皮。
 
眼睛的颜色 
 
在眼睛颜色方面,黑色等深颜色相对于浅颜色而言是显性遗传。也就是说,如果你羡慕蓝眼睛,选择了一个蓝眼睛的人做了爱人,但因为你是黑眼睛,所生的孩子很有可能不会是蓝眼睛。
 
睫毛的长短
 
长睫毛也是显性遗传的,父母双方只要有一个人拥有动人的长睫毛,孩子遗传长睫毛的可能性就非常大。
 
鼻子
 
一般来讲,鼻子大、高而鼻孔宽的人呈显性遗传。父母双方中有一人是挺直的鼻梁,遗传给孩子的可能性就很大。另外,鼻子的遗传基因会一直持续到成年,也就是说,小时候矮鼻子的人,长到成年时期还有变成高鼻子的可能。
 
寿命 
 
寿命是有遗传基础的。我们可以看到,有些家族中的成员个个长寿,但也有短命的家族存在。寿命的长短有家族聚集的倾向性,如果你的家族中有长寿的先例,那么你的孩子长寿的可能性是很大的。最有说服力的是对同卵双生子的调查。资料统计,60~75岁去世的双胞胎,男性双胞胎死亡的时间平均相差4年,女性双胞胎仅差2年。不过,寿命也受环境因素的影响,如饮食习惯、生活环境、工作环境等,也在不同程度上左右着人的寿命。
 
身高
 
研究表明,人的身高有70%取决于遗传,后天因素的影响只占到30%。一般来讲,如果父母身材较高,孩子身材高的机会为30%,矮的机会为10%,身材偏矮则反之;如果父母中一人较高,一人较低,就取决于其他因素。
 
胖瘦
 
胖瘦的体形有一定的遗传性,不同的人,吃同样的食物,有同样的运动量,但有的人体形正常,有的人却偏胖或偏瘦。研究认为:不同的人有着不同的代谢率,通常代谢率较低的人就容易长胖,这是由于体形遗传因素而决定的。如果父母体形属于容易长胖的那种类型,孩子就容易偏胖。如果父母中有一人肥胖,孩子发胖的机会是30%。如果父母双方都肥胖,孩子发胖的机会是50%~60%。
 
肤色
 
肤色在遗传时往往不偏不倚,让人别无选择。它总是遵循着“相乘后再平均”的自然法则。比如,父母皮肤较黑,那他们有白嫩肌肤的孩子的机会很小;如果父母中一个人较黑,一个人较白,孩子将会是中间肤色。因此,黄种人生的孩子,一定是黄种人的肤色。假如非洲人与亚洲人结婚,生出的孩子皮肤也很黑。
 
耳朵
 
耳朵的形状是遗传的,而且大耳朵是显性遗传,小耳朵是隐性遗传。父母双方只要一个人是大耳朵,那么孩子就极有可能也是一对大耳朵。
 
下颚
 
下颚绝对是显性遗传,父母任何一方有突出的大下巴,孩子十有八九会长成相似的下巴,这种特征表现得非常明显。
 
声音
 
孩子的声音通常都会非常接近父母,其相似程度会比长相、形体更甚。如果父亲笑声爽朗,母亲又是个大嗓门,很难想象孩子会细声细气。通常儿子的声音与父亲很接近,女儿的声音则很像母亲。声音的高低、音量、音质等各方面,不仅与喉头有关,还要由鼻的大小、张口的大小、舌的长短、颜面的骨骼等各因素综合决定。而且,这些方面无不遗传父母的基因,所以声音遗传是不奇怪的。但是,这种由父母生理解剖结构所影响的音质如果不美,大多数可以通过后天的发音训练而改变。因此,某些声音条件并不优越的人,通过后天的发音训练会发生声音改变。这样,也可以使某些声音条件并不优越的人,通过科学、刻苦的练习,圆一个拥有甜美圆润嗓音的梦。
 
智力
 
虽然智力不完全由遗传因素所决定,但与遗传有一定关系。人的智力取决于遗传、环境两方面的因素。一般认为,遗传发挥着很大的作用,环境则决定了另外40%。有人长期研究过一群智商在140分以上的孩子,从中发现这些孩子长大后一直保持优秀的才智,他们的孩子的智商平均为128分,远远超过一般孩子的水平。而那些精神缺陷者,他们的孩子当中有59%的人有精神缺陷或智力迟钝。据科学家评估,就遗传而言,妈妈聪明,生下的孩子大多聪明,如果是个男孩子,就会更聪明。这其中的原因在于人类与智力有关的基因主要集中在X染色体上。女性有2个X染色体,男性只有1个,所以妈妈的智力在遗传中就占有了更重要的位置。
 
在智力遗传中,不仅包括智商,还包括情商。所谓的情商,是指人的个性、脾气、处事能力、交际能力等方面。比如有些孩子在处事能力、交际能力方面像爸爸,而另外一些方面,如个性、脾气与母亲很相像。此外,孩子的智力与环境也有很大的关系,智力的实际表现还要受后天的极大影响。
 
天赋
 
无论是爸爸还是妈妈,在某些方面的天赋都有可能遗传给孩子,使孩子在某些方面的潜力很高。因此,父母的某种天赋在周围环境影响下,如果适当地进行开发,就可以使孩子在这方面有更好的发展。自古以来,出现了许多极具天赋的家族,如音乐家巴赫、莫扎特和韦伯家族中,几代人中都有诸多的音乐家出现。这种智力的家族聚集性现象,恰恰说明了先天和后天因素对才艺天赋的作用。
 
秃顶
 
秃顶只传给男子。比如,父亲是秃顶,遗传给儿子概率则有50%,就连母亲的父亲,也会将自己秃头的25%的概率留给外孙们。 
 
青春痘
 
这个让少男少女耿耿于怀的“面子问题”,居然也与遗传有关。因为父母双方若患过青春痘,子女们的患病率将比无家庭史者高出20倍。
 
双胞胎
 
双卵双胎的一般为母系遗传,单卵双胎的情况与遗传无关。若女性本身为双卵双胎之一,分娩双胎的概率比丈夫为双卵双胎之一者更高,提示母亲的基因型影响比父亲大。
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