某种开花植物的乙醇脱氢酶同功酶由共显性等位基因控制,在一个35株植物的样本中获得如下

题型:问答题

问题:

某种开花植物的乙醇脱氢酶同功酶由共显性等位基因控制,在一个35株植物的样本中获得如下资料:
基因型 AA AB BB BC CC AC
数 目 2 5 12 10 5 1
等位基因A、B、C的频率是多少

考点:普通考研07理学群体遗传与进化(三)
题型:问答题

I didn’t cry when I learned I was the parent of a disabled child. I just sat still and didn’t say anything.

When Jenny was old enough, I sent her to a kindergarten. On the first morning, Jenny spent hours playing by herself. It seemed that she felt very ______.

However, to my joy, Jenny’s classmates always ______ her, “You got all your spelling words right today!” In fact, her spelling list was the easiest. Later, she faced a very painful ______—— at the end of the term, there was a game which had something to do with physical education. But Jenny was behind in it.

My husband and I were anxious about the day. I wanted to let my child stay home! But my heart wouldn’t let me off that easily. So I ______a pale, unwilling Jenny onto the school bus.

At the kindergarten, I was quite worried because of her slow action, Jenny would probably ______up her team. The game went well until it was time for the sack(麻袋)race. Surely Jenny would find it ______ . Now each child had to climb into a sack, jump to the finishing line, return and climb out of the sack. I noticed Jenny standing near the end of her line of players.

But as it was her turn to join, a change took place in her ______. The tallest boy behind Jenny placed his hands on her waist(腰). Two other boys ______in front of her. The moment the player before Jenny stepped out from the sack, the two boys _____the sack suddenly and kept it open while the tall boy ______ Jenny and put her into it. A girl nearby took her hand and supported her ______ Jenny got her balance(平衡). Then she jumped forward, smiling and proud. In the cheers of the teachers, schoolmates and parents, I silently thanked the warm, understanding people in life who made it ______ for my disabled daughter to be like her fellow human beings. Then I finally cried.

小题1:

A.excited

B.lonely

C.happy

D.weak小题2:

A.greeted

B.respected

C.encouraged

D.appreciated小题3:

A.problem

B.choice

C.result

D.exam小题4:

A.threw

B.pushed

C.knocked

D.fixed小题5:

A.hold

B.build

C.keep

D.take小题6:

A.stupid

B.simple

C.relaxing

D.difficult小题7:

A.school

B.family

C.team

D.heart小题8:

A.ran

B.lay

C.walked

D.stood小题9:

A.picked up

B.gave up

C.looked up

D.made up小题10:

A.shook

B.hid

C.lifted

D.helped小题11:

A.when

B.until

C.after

D.unless小题12:

A.popular

B.special

C.necessary

D.possible

题型:问答题

工程项目工作时间估算的方法包括()。

A.类比估算法

B.模拟法

C.专家判断估算法

D.比较法

E.利用历史数据法

题型:问答题

The government has taken a series of measures to _________ people’s needs in our country, which has provided good opportunities for many companies.

A.explain

B.expand

C.export

D.expect

题型:问答题

佛教如何看待“生命本源”的说法?

题型:问答题

拉希格圈的作用是靠液体表面张力除去压缩空气中的()。

A.大分子颗粒

B.油分

C.水分

D.灰尘

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