Title: Meiosis Lab
Part 1: Modeling Meiosis Without Crossing Over (reformat as needed)
Take photos of the following stages of your meiosis bead simulation. Insert and label the following images:
Meiosis 1: Prophase I and Metaphase I
Meiosis 2: Metaphase II and Telophase II
Part 2: Modeling Meiosis With Crossing Over (reformat as needed)
Take photos of the following stages of your meiosis bead simulation. Insert and label the following images:
Meiosis with Crossing Over: Metaphase I and Telophase II
Questions â use the lab Introduction, your textbook and other sources to answer the following.
What is the state of DNA at the end of meiosis I? Are the chromosomes replicated or unreplicated? Diploid or haploid?
Why are chromosomes important?
How are Meiosis I and Meiosis II different?
Name two ways meiosis contribute to genetic recombination or genetic variety.
Why do you use non-sister chromatids to demonstrate crossing over? What would happen if you crossed over sister chromatids?
How many chromosomes were present in your simulation when meiosis I started?
Why is it necessary to reduce the chromosome number in gametes, but not in other cells of an organism?
If humans have 46 chromosomes in each of their body cells, determine how many chromosomes you would expect to find in the following:
Sperm
Egg Daughter cell after mitosis
Daughter cell after meiosis
Investigate a disease that is caused by a chromosomal mutation due to nondisjunction. When does the mutation occur? What chromosome is affected? What are the consequences?
Title: Meiosis Lab
Part 1: Modeling Meiosis Without Crossing Over (reformat as needed)
Take photos of the following stages of your meiosis bead simulation. Insert and label the following images:
Meiosis 1: Prophase I and Metaphase I
Meiosis 2: Metaphase II and Telophase II
Part 2: Modeling Meiosis With Crossing Over (reformat as needed)
Take photos of the following stages of your meiosis bead simulation. Insert and label the following images:
Meiosis with Crossing Over: Metaphase I and Telophase II
Questions â use the lab Introduction, your textbook and other sources to answer the following.
What is the state of DNA at the end of meiosis I? Are the chromosomes replicated or unreplicated? Diploid or haploid?
Why are chromosomes important?
How are Meiosis I and Meiosis II different?
Name two ways meiosis contribute to genetic recombination or genetic variety.
Why do you use non-sister chromatids to demonstrate crossing over? What would happen if you crossed over sister chromatids?
How many chromosomes were present in your simulation when meiosis I started?
Why is it necessary to reduce the chromosome number in gametes, but not in other cells of an organism?
If humans have 46 chromosomes in each of their body cells, determine how many chromosomes you would expect to find in the following:
| Sperm | Egg | Daughter cell after mitosis | Daughter cell after meiosis |
Investigate a disease that is caused by a chromosomal mutation due to nondisjunction. When does the mutation occur? What chromosome is affected? What are the consequences?
