chester meiosis wk 2 Word Scramble
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| Question | Answer |
| meiosis | sexual reproduction also known as gametogenesis where you produce gametes with haploid number |
| haploid or n | 1/2 of the chromosomes or 1 version of every chromosome another name for haploid is monoploid |
| what is a gamete? | egg sometimes called an ovum (n chromosomes) sperm (n chromosomes) these are sex cells |
| how many rounds of cell division take place in meiosis? | 2 rounds |
| The only way to pass a trait to the offspring is how? | through the gametes |
| during the S phase of the cell cycle during interphase what happens in meiosis? | duplicate chromatin creating sister chromatids just like mitosis |
| what is fertilization during sexual reproduction? | egg (n) + sperm (n) produce zygote (2n) |
| what is a zygote? | a fertilized egg created from egg and sperm joining together and you end up with diploid number of chromosomes |
| egg and sperm are also called what? | germ cells |
| where does meiosis take place? | in the gonads which are the ovaries in the female and testes in the males |
| what are gonads in females called? | ovaries |
| what are gonads in males called? | testes |
| what is spermatogenesis | the process in human males where the sex cells divide and form 4 haploid sperm cells |
| what is oogenesis | the process in human females where the sex cells divide and form 1 haploid egg and 3 polar bodies |
| in a human how many chromosomes are in a diploid cell? | 46 |
| in a human how many chromosomes are in a haploid cell? | 23 |
| how many sperm cells are produced in a male for each diploid cell? | 4 sperm cells |
| how many eggs are produced in a female for each diploid cell? | 1 egg and 3 polar bodies |
| how many eggs does a female make per month? | 1 egg or ovum |
| which has most of the cytoplasm in females the egg or the polar bodies? | egg has most of the cytoplasm and polar bodies has very little |
| what are the 2 main events that take place in prophase I | forming a tetrad and crossing over |
| what is crossing over? | exchange of genetic material between sister chromosomes during prophase I |
| what is the advantage of crossing over? | makes chromosomes more genetically diverse that leads to a more diverse offspring |
| what is a tetrad? | 4 sister chromatids together or chromosomes when you can see them |
| in metaphase I what lines up in the middle of the cell? | tetrads |
| in prophase I what happens? | nucleus disappears, chromosomes are formed, tetrads formed, crossing over takes place |
| what is produced at the end of telophase I and cytokinesis I? | 2 daughter cells that are n or haploid |
| Meiosis II ensures what? | that each cell has a single copy of each chromosome |
| in a male at the end of cytokinesis II what is formed? | 4 haploid sperm cells |
| in a female at the end of cytokinesis II what is formed? | 1 egg cell and 3 polar bodies |
| when a tetrad is formed what is that process called? | synapsis |
Created by:
rhaught
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