1. Unit Four: Heredity J.H. Howard GTCHS Biology
Meiosis
Unit Four: Heredity
J.H. Howard
GTCHS Biology

2. What is meiosis? A SPECIAL type of cell division that results in:
Each daughter cell has only one set of ______________________ compared to the parent

3. What is meiosis?
We see this process of meiosis occurring in the production of reproductive cells in: 1. 2.
Meiosis is only used in organisms that combine the unique genetic information of two parents
(also known as: )
Meiosis is used for the creation of GAMETES
(definition: )
This process is called :

4. What does meiosis look like?
Each figure on this slide has the same thing in common: Meiosis ALWAYS involves two rounds of cell division but only ONE round of:

5. What does meiosis look like?

6. Steps of Meiosis: Meiosis I: Meiosis II: Prophase I: Metaphase I:
Anaphase I:
Telophase I:
Meiosis II:
Prophase II:
Metaphase II:
Anaphase II:
Telophase II:

7. Meiosis – Importance of Chromosome PAIRS
You have 46 total chromosomes arranged in _____ pairs
22 of these pairs are called ‘homologs’ or are ‘homologous pairs’ meaning:
1 of these pairs are ‘sex chromosomes’ – these are also paired together and each child inherits one sex chromosome from mom and one from dad-
These chromosomes participate in SEX DETERMINATION

8. What is meiosis? Sperm cells: Egg cells: Final product of meiosis

9. Steps of Meiosis – what does it look like?

10. Compare and Contrast: Mitosis: Meiosis:
Chromosome duplication followed by ONE round of cell division  which leads to …
Meiosis:
Chromosome duplication followed by TWO round of cell division  which maintains …