Meiosis

Homework #1

Overview of Meiosis and Homologous Chromosomes

1. Please explain the difference between autosomal chromosomes and sex chromosomes. How many of each do humans have?

2. Describe what homologous chromosomes are and label their parts.

3. Where does meiosis occur in females? Where does it occur in males?

4. What is meiosis called in females? What is it called in males?

5. What are male gametes called? What are female gametes called?

6. What does “n” and 2n” mean? Could you give an example?

7. Please briefly explain how a diploid zygote is formed in your own words.

Meiosis: Homework #2

For each phase of meiosis in Spermatogenesis and Oogenesis please provide three facts (diagrams are okay)

Interphase:

Prophase I:

Metaphase I:

Anaphase I:

Telophase I:

Prophase II:

Metaphase II:

Anaphase II:

Telophase II:

Please explain how a diploid zygote is created by fusing to haploid gamete.

Please explain what occurs in the homologous recombination of a tetrad. Why is this important?

Meiosis

Homework #3

Meiotic errors, Karyotyping and Meiosis v Mitosis

1. Please explain non-disjunction in your own words. What is it, how does it work

and what are the consequences of non-disjunction? (Diagrams are acceptable)

2. Please explain how monosomy occurs and give an example of a monosomic disease to illustrate this point.

3. Please explain how trisomy occurs and give an example of a trisomic disease to illustrate this point.

4. Please compare and contrast mitosis and meiosis. Feel free to use diagram(s) to

help your analysis.