护理入学考试生物练习卷（附答案）

免费可打印的护理入学考试生物练习卷：8 道题，从简单到考试水平，附答案。可打印或另存为 PDF。

新练习卷在线练习，附提示

教师请注意： 可免费打印、复印并在课堂上使用。每份新练习题都有新的数值和独立的答案。欢迎在课程页面添加指向 ExamProblems 的链接。

姓名: ____________________   日期: ____________

1.简单

What is a monosaccharide?

  1. ATwo sugars joined together, such as sucrose
  2. BA single sugar unit, such as glucose
  3. CA chain of many amino acids
  4. DA fat made of glycerol and fatty acids
2.简单

Which enzyme unwinds the DNA double helix and separates the two strands for copying?

  1. AAmylase
  2. BLigase
  3. CHelicase
  4. DLipase
3.简单

What is a model in science?

  1. AA single measurement from an experiment
  2. BA simplified representation of a real system
  3. CThe control group of a study
  4. DAn exact copy that has no limitations
4.中等

Sickle cell disease is caused by a single base change that replaces one amino acid in haemoglobin. What type of mutation is this?

  1. AA nonsense mutation
  2. BA missense mutation
  3. CA frameshift mutation
  4. DA silent mutation
5.中等

Why do chromosomes condense into short, thick shapes before mitosis?

  1. ASo that they can leave through the nuclear pores
  2. BSo that they can be copied more quickly
  3. CSo that genes can be transcribed more easily
  4. DSo they can be moved apart without tangling or breaking
6.中等

为什么红绿色盲在男性中比在女性中更常见？

  1. A该等位基因在男性中是显性的，在女性中是隐性的
  2. B女性不能从父亲那里遗传该等位基因
  3. C男性只有一条 X 染色体，所以一个等位基因就足够
  4. D该等位基因位于 Y 染色体上
7.困难

A linear DNA molecule is fully cut by a restriction enzyme, giving fragments of 500, 300 and 200 base pairs. How long was the original molecule?

  1. A300 base pairs
  2. B1500 base pairs
  3. C1000 base pairs
  4. D500 base pairs
8.困难

A cell is 0.00002 m wide. Which value is equal to this width?

  1. A20 µm
  2. B200 µm
  3. C0.2 mm
  4. D2 µm

答案

  1. 1. B · A single sugar unit, such as glucose
  2. 2. C · Helicase
  3. 3. B · A simplified representation of a real system
  4. 4. B · A missense mutation
  5. 5. D · So they can be moved apart without tangling or breaking
  6. 6. C · 男性只有一条 X 染色体，所以一个等位基因就足够
  7. 7. C · 1000 base pairs
  8. 8. A · 20 µm

完整分步解答：请在 examproblems.com 上练习本主题。