豚鼠有黑毛和白毛之分,控制黑毛的基因是“B”,控制白毛的基因是“b”,下图是有关

题型:读图填空题

问题:

豚鼠有黑毛和白毛之分,控制黑毛的基因是“B”,控制白毛的基因是“b” ,下图是有关豚鼠黑毛和白毛的遗传图解,请据图回答:

(1)请判断亲代中,雌性豚鼠的性状表现为____。

(2)请写出子代豚鼠的体毛各是什么颜色:①____、②____、④____。

(3)生殖细胞是指精子和卵细胞,它们的染色体数目是体细胞中染色体数目的____。

(4)如果亲代中雌性豚鼠的体毛为白色,试分析子代的性状可能有____种。

考点:生殖过程中染色体的变化生物的性状
题型:读图填空题

阅读理解,回答问题。

     Mrs. Green is going to give Mary a birthday party. Mary is her daughter. She will be ten years old.

A lot of her friends are coming to the party. Twenty of them are girls.

     Mrs.Green is getting ready for the party. Mrs.White is helping her.

     "That's a big nice cake," says Mrs.White to Mrs.Green.

     "Thank you very much."

     Mrs.Green is going shopping now.She is going to buy fruit for the party.Mrs.Green buys a lot of

pears, apples, oranges and bananas. Then she goes home.

     It's five o'clock in the afternoon. Everything is ready. Now the first girl is arriving. The party is going

to begin in thirty minutes.

1. Who is Mrs.Green going to give a birthday party to?

    _______________________________.

2. How old is Mary now?

   _______________________________.

3. What does Mrs.Green buy fruit for?

   _______________________________.

4. When is the party going to begin?

   _______________________________.

5. How many girls are there at the party?

   _______________________________.

题型:读图填空题

记账凭证账务处理程序一般适用于规模小,业务复杂,凭证较多的单位。()

题型:读图填空题

腹腔脏器穿孔可有()

A.皮下气肿

B.纵隔气肿

C.两者均有

D.两者均无

题型:读图填空题

在Excel 2003中,若在A1单元格中输入函数“=LOG10(10^5)”,按回车键后,则A1单元格显示的值为______。

A.100000

B.10

C.5

D.2

题型:读图填空题

编程语言大致分为面向机器,面向过程和面向对象3种结构,Java语言是面向【 】的一种网络编程语言。

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