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Meiosis and Mitosis
| Question | Answer |
|---|---|
| What type of cell undergoes meiosis? | Gamete Cells |
| What are homologouse chromosomes? | Chromosomes that are the same |
| Sperm Cell | Haploid |
| Liver Cell D | Diploid |
| Egg Cell | haploid |
| Stomach Cell | Diploid |
| If the diploid number in a liver cell is 52, how many chromosomes are there in the egg of this organism? | 26 |
| During Meiosis, the chromosome number is: | Reduced |
| Cells starting mitosis and meiosis begin with a (haploid or diploid) set of chromosomes. | Diploid |
| How many times do cells divide during meiosis? | 2 |
| What are the stages of meiosis I called? | Prophase I, Metaphase I, Anaphase I, Telophase I / Cytokinesis |
| What about Meiosis II? | Prophase II, Metaphase II, Anaphase II, Telophase II / Cytokinesis II |
| What phase do you first see a tetrad in? | Prophase |
| What best describes the term "crossing over"? | An exchange of information between two homologous chromosomes |
| Crossing over can be found in the stage of | Prophase I and Metaphase I |
| Is DNA copied before Meiosis II? | Yes because DNA replication happens in Interphase S and that is before any other phases. |
| How many cells form at the end of Meiosis II and how many chromosomes do they contain | 46 cells and 23 chromosomes |
| A Sperm cell is a (gamete, zygote), and is (haploid, diploid). and why? | Gamete and Haploid because all sex cells are haploid and body cells are diploids |
| When a sperm cell and an ovum/egg merge, they undergo the process of fertilization, and give rise to a (gamete, zygote), which is (haploid, diploid). | Gamete and Haploid |
| What is the ultimate goal/purpose of mitosis? What term do we use to describe the new cells? | Division of somatic cells. Daughter cells |
| Describe Cancer | uncontrolled Cell Division |
| How are DNA and chromosomes related? | DNA is a double-helix that contains chromosomes |
| What is a gamete? How do we represent the chromosome number: 2n or n? | A gamete is a sex cell and it is represented by n |
| What is crossing over? When does it happen? | Crossing Over is when sister chromatids swap pieces of their chromosomes. Prophase I and Metaphase I |
| OOGenesis | the production of an egg |
| Chromosomes |