Chapter 11 – Sexual Reproduction and Meiosis
42. In 95% of cases of Down’s syndrome, there is one extra chromosome (number 21) in
every cell. This aneuploid condition is most likely the result of
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you know about meiosis? How does it relate to the question?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
Chapter 11 – Sexual Reproduction and Meiosis
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 11 – Sexual Reproduction and Meiosis
43. Why does sexual reproduction require both meiosis and syngamy?
Check All That Apply Questions
44. Which cells never divide by meiosis? (Check all that apply.)
Chapter 11 – Sexual Reproduction and Meiosis
45. A cell biologist examines a skin cell from a lizard during metaphase of mitosis and
determines that 20 chromatids are present. The role of meiosis in this species is to (Check all
that apply)
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you know about meiosis? How does it relate to the question?
Consider Possibilities
Chapter 11 – Sexual Reproduction and Meiosis
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
46. A cell biologist examines a leaf cell from an alfalfa plant during metaphase of mitosis and
determines that 32 chromatids are present. The role of fertilization in this species is to
(Check all that apply)
Chapter 11 – Sexual Reproduction and Meiosis
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you know about fertilization? How does it relate to the question?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Multiple Choice Questions
Chapter 11 – Sexual Reproduction and Meiosis
47. The most common form of gene therapy involves inserting a normal gene into cells that
contain a defective version of the gene. In order to use gene therapy to prevent a man from
passing a defective gene on to future generations, you should try to insert normal copies of the
gene into
Chapter 11 – Sexual Reproduction and Meiosis
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you know about fertilization? How does it relate to the question?
Consider Possibilities
•
What other information is related to the question? Which
information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 11 – Sexual Reproduction and Meiosis
Fill in the Blank Questions
48. If a germ-line cell from an owl contains 8 picograms of DNA during G1 of interphase,
how many picograms of DNA would be present in each cell during prophase I of meiosis?
(Enter the number only, not the units.)
Clarify Question
• What is the key concept addressed by the question?
• What type of thinking is required?
• What key words does the question contain and what do they mean?
Gather Content
• What do you know about meiosis? How does it relate to the question?
Consider Possibilities
• What other information is related to the question? Which information is most useful?
Choose Answer
Chapter 11 – Sexual Reproduction and Meiosis
• Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did
the process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
49. If a somatic cell from a cat contains 40 picograms of DNA during G2 of interphase, how
many picograms of DNA would be present in each cell during metaphase II of
meiosis? (Enter the number only, not the units.)
Chapter 11 – Sexual Reproduction and Meiosis
Clarify Question
• What is the key concept addressed by the question?
• What type of thinking is required?
• What key words does the question contain and what do they mean?
Gather Content
• What do you know about meiosis? How does it relate to the question?
Consider Possibilities
• What other information is related to the question? Which information is most useful?
Choose Answer
• Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
• Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Type: Quantitative Reasoning
Chapter 11 – Sexual Reproduction and Meiosis
50. If a germ-line cell from a salamander contains 10 picograms of DNA during G1 of
interphase, how many picograms of DNA would be present in each gamete produced by this
species? (Enter the number only, not the units.)
Chapter 11 – Sexual Reproduction and Meiosis
Clarify Question
• What is the key concept addressed by the question?
• What type of thinking is required?
meiosis.
• What key words does the question contain and what do they mean?
Gather Content
• What do you know about meiosis? How does it relate to the question?
Consider Possibilities
• What other information is related to the question? Which information is most useful?
Choose Answer
• Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
• Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 11 – Sexual Reproduction and Meiosis
51. How many tetrads are present in a single elephant cell (2n=56) during metaphase I of
meiosis?
Chapter 11 – Sexual Reproduction and Meiosis
Clarify Question
• What is the key concept addressed by the question?
• What type of thinking is required?
• What key words does the question contain and what do they mean?
Gather Content
• What do you know about tetrads? How does it relate to the question?
Consider Possibilities
• What other information is related to the question? Which information is most useful?
Choose Answer
• Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
• Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 11 – Sexual Reproduction and Meiosis
Multiple Choice Questions
52. A geneticist examines a somatic cell from a fly during metaphase of mitosis and
determines that 16 chromatids are present. If a germ-line cell from this species divides by
meiosis, then at the end of meiosis I (including the first cytokinesis) each cell will contain