问题 读图填空题

下图描述了人的一些性状,据图回答问下列问题

(1)请写出图中任意两对相对性状:①             ;②            

(2)你拇指的性状符合图中哪种情况?写出你可能具有的基因组成。(分别用E、e表示显性和隐性基因)          

①我拇指的性状为          

②我可能的基因组为          _。

③某人的基因组成为Ee,下列哪幅图能正确表示这对基因在染色体上的分布情况______。

 

(3)如果孙悟同学的拇指屈曲,那么

①他的双亲是否有可能都是拇指直立?_________。 

②如果可能,请画出其遗传图解;如果不可能,请说明理由。

答案

(1)①有耳垂和无耳垂,②能卷舌和不能卷舌(可写出图中任何一对相对性状,如棕眼睛与蓝眼睛、正常色素与白化、拇指直立与拇指屈曲。)

(2)情况之一:①拇指直立;②EE或Ee;  

    情况之二:①拇指屈曲;②ee;

    ③D

(3)①有可能

②遗传图解如下图(任画一正确的图)

单项选择题
阅读理解

Laughter Yoga (瑜伽) is a unique technique invented by Dr Kataria, a doctor from India, by which you can learn to “Laugh for No Reason”. You don’t even need a sense of humor, no funny jokes or comedy programs — just a willingness to laugh — and in the present climate everyone needs to laugh more.

Laughter Yoga is a combination of Laughter Exercises and Yogic Breathing, so that you increase the amount of oxygen in your body while being playful, resulting in you feeling healthier, energetic and alive. This actually changes the physical conditions of your body so that you start to feel happier.

Laughter Yoga is generally done in groups although it can be practiced alone. When you make eye contact with someone and you’re both willing to laugh, the laughter is increased. However, we do say that you can “Fake (假装) it, fake it till you make it” because the body doesn’t know the difference between fake and true laughter; as long as you’re willing to laugh you’ll experience the same health benefits.

Laughter Yoga started in a park in Mumbai in 1995 with just 5 participants, and now there’re over 6,000 laughter clubs in 60 different countries — showing the willingness of the world to laugh together.

In the UK, Julie was one of the first people to train as a Laughter Leader with Dr Kataria in June 2002. In 2006 she was awarded Laughter Ambassador for her selfless service to promote Laughter Yoga.

“Yoga has been part of my life for 30 years but 7 years ago my life changed when I discovered Laughter Yoga. I believe laughter and yoga are both good for your health,” says Julie.

小题1:Why do people practicing Laughter Yoga laugh a lot?

A.They have a sense of humor.

B.They are amused by jokes.

C.They are willing to laugh.

D.They can’t help laughing a lot.小题2: What do we know about Julie from the passage?

A.She took up Laughter Yoga 30 years ago.

B.She helped make Laughter Yoga more popular.

C.She used to suffer from serious physical problems.

D.She was the first person to practise Laughter Yoga.小题3:The purpose of the passage is to _____.

A.persuade people to take up Laughter Yoga

B.tell people how to practise Laughter Yoga

C.describe the good effects of Laughter Yoga

D.introduce Laughter Yoga as a new event