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Meiosis
Biology questions about meiosis
Question | Answer |
---|---|
What kind of cells does meiosis produce? | Gametes |
Does meiosis start haploid or diploid? | Diploid |
The second phases of meiosis looks like...? | Mitosis |
What is crossing over? | Homologous chromosomes touch and exchange genes to get a new combination. |
Starts with one cell, ends with...? | Four gametes |
What happens in prophase I? | Chromatin condenses. Homologous chromosomes pair up and exchange genetic material. |
What happens in metaphase I? | Chromosomes that have crossed over line up randomly(independent assortment) in the middle of the cell |
What happens in anaphase I? | Homologous chromosomes separate and move to poles of the cell. Sister chromosomes do not separate, but homologous pairs drift apart. |
What happens in telophase I? | Nuclear envelope begins to reform. There are two cells, both are considered haploid as there is only one of each chromosome. |
What is cytokinesis? | The division of the cytoplasm |
The two cells have ___ copy(s) of each chromosome in each cell | 2 |
Gametes only have ___ copy(s) of each chromosome, so the cells must undergo another division | 1 |