Topic 4.2 - Meiosis and Reproduction

Multiple Select

Which of the following statements are true about diploid and haploid cells?

• Body cells are haploid and have one set of chromosomes.

• Sex cells are diploid and have two sets of chromosomes.

• Body cells are diploid and have two sets of chromosomes.

• Sex cells are haploid and have one set of chromosomes.

Open Ended

Why do you think sex cells need to have only half the number of chromosomes as body cells? What might happen if they didn’t?

Open Ended

What is the difference between homologous chromosomes and sister chromatids?

Multiple Choice

Which of the following statements about meiosis is correct?

• Meiosis starts with two cells and ends with two cells.

• Meiosis has one division called Meiosis I.

• Meiosis starts with one cell and ends with four cells.

• Meiosis produces diploid cells.

Multiple Choice

What are two key results of meiosis in terms of genetic makeup and chromosome number?

• Cells are diploid and genetically identical

• Cells are haploid and genetically different

• Cells have 46 chromosomes and are used for asexual reproduction

• Cells are haploid and genetically identical

Multiple Choice

Which of the following is NOT a reason why crossing over matters during meiosis?

• Creates genetic diversity

• New trait combinations form

• No two gametes are identical

• Ensures all gametes are identical

Open Ended

Why might crossing over be beneficial to a population over many generations?

Multiple Select

Which of the following events occur during Anaphase I of meiosis?

• Homologous chromosomes separate

• Sister chromatids separate

• Chromosome number is reduced

• Cells become haploid

Multiple Choice

During which phase of meiosis do homologous chromosomes pair up and exchange DNA?

• Prophase I

• Metaphase I

• Anaphase II

• Telophase I

Multiple Choice

Which phase of Meiosis II is characterized by the separation of sister chromatids?

• Prophase II

• Metaphase II

• Anaphase II

• Telophase II

Multiple Choice

During which phase of meiosis do homologous pairs line up at the equator and undergo independent assortment?

• Metaphase I

• Anaphase I

• Telophase I

• Meiosis II

Multiple Select

Select all statements that are true about the cells produced at the end of Meiosis II.

• All cells are genetically identical

• All cells are haploid

• All cells are genetically different

• All cells are diploid

Open Ended

Why do you think errors during meiosis affect offspring more seriously than errors during mitosis? (2–3 sentences)

Multiple Choice

What is the significance of meiosis in living organisms?

• It helps organisms grow larger

• It produces identical cells for repair

• It creates genetic diversity through gamete formation

• It is responsible for photosynthesis

Open Ended

Reflecting on today's lesson about meiosis, what is one question you still have or something you would like to know more about?