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Main Idea Answers

 

Main Idea Practice Answers

Main Idea

Exercise 1

1.b; 2.b

Exercise 2

1. Across the country, many states have abolished the policy of “social promotion,” even though there is no hard evidence that making children repeat a grade has a positive effect.

2. In 1932, Wallace H. Carothers developed nylon, the first synthetic fiber, which had a dramatic effect on world events.

Exercise 3

1. No nicknames for soldiers of previous generations have earned the popularity of the term GI.

2. Since her death, Frida Kahlo’s reputation has overtaken her husband’s.

Exercise 4

1. King Leopold of Belgium exploited the Congo for personal gain and all but ruined the country.

2. The invention of the CAT scan was as important a discovery as the development of X-Rays.

Inference Exercises

Exercise 1

1. Abraham Lincoln
Clue: He steered the country through civil war.
Explanation: Lots of people have big Adam’s apples, but America has had only one civil war.
2. Tina Turner
Clue: She ruled the stage but Ike ruled the roost.
Explanation: There were many popular women singers in the sixties but only one was linked to a domineering husband named Ike.

Exercise 2

Answers may vary.

1. Inference: The puppy may well have been abused by its former owners.

2. Inference: The students are going to take advantage of the substitute teacher.

Exercise 3

1. b; 2. a

Exercise 4

1. a; 2. b

Exercise 5

Answers will vary.

1. Richard the Lionhearted was not so pure of heart as some movies suggest.

2. Her romantic attachment to Clyde Barrow led Bonnie Parker into a life of crime.

Jeopardy Instructions

Instructions for Playing Jeopardy

  1. You can have students play jeopardy in small groups or two larger groups. If playing by teams, it is suggested that you appoint one score-time keeper for the class and a spokesperson on each team to give the answer. (We use two different colors of beads to select teams & then a single black bead is the score keeper.)

2.  Have a team pick a category and a point value.

3. Click on the chosen box for the question.

  1. Students must give the answer before clicking again.  The teacher may want to set a time limit (30 to 40 seconds) for answering the question.
  2. To see if student or group is correct, click again for the answer.
  3. If the student or team is CORRECT, they are awarded the point value of the question.
  4. If the student or team is INCORRECT, the opposing team may steal the points by correctly answering the question.
  5. Move your mouse to the picture of the house to return to the main screen.
  6. If a screen click brings up the Double Jeopardy slide, the student or team may wager some or all of their points to correctly answer the question.
  7. Continue until all questions have been answered.  The team with the most points wins.

Karyotypelab Writeup

Karyotype Lab Write Up

Introduction:
Use your PowerPoint notes over, “Types of Mutations,” and your textbook to help you write  your introduction.  THIS MUST BE IN PARAGRAPH (not question-answer) FORM!!

  • What are mutations and what causes them?
  • What is the difference between somatic cell and gamete mutations?  Can both be passed to offspring?
  • Briefly describe the 4 types of chromosome mutations.
  • What is a gene mutation?
  • How does a point mutation occur?
  • What is a frameshift mutation?
  • What are karyotypes?
  • How many chromosomes are in a normal human karyotype?
  • What are the sex chromosomes?
  • What sex chromosomes determine a male?  a female?
  • Give some examples of genetic mutations caused by nondisjunction. 

Hypothesis:

  • Write a statement  explaining that karyotypes can help detect chromosomal mutations..

Materials:

  • In sentence form, list the materials from your lab sheet that are needed for this lab.

Procedure:

  • In paragraph form, write the procedures for completing this karyotype lab.

Results:

  • Each person or group will place their karyotype in your lab notebook on the page on which you start your results.  Lab groups will turn in their notebooks together so the karyotype can be graded for each person
  • Write out and answer the questions on the lab. Remember to NUMBER and UNDERLINE the question, but do NOT underline the answer.  NOTE: HI-LITE THE ANSWER!

Conclusion:

  • Restate your hypothesis
  • Tell what type of karyotype was made, the disorder if any, sex of the individual, chromosome number of karyotype)
  • Explain how your karyotype shows the condition (normal, Down’s, Turner’s Syndrome, Klinefelter’s Syndrome, Cri-du-chat)
  • Explain how your karyotype tells the sex of the individual
  • Explain what chromosome mutation, if any, is present in your karyotype, whether it is an autosomal mutation or a mutation involving the sex chromosomes
  • Use the internet or the library to find more about a person with this type of disorder (their appearance, how they look, etc.

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