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Gen Bio Meiosis
meiosis
Question | Answer |
---|---|
What does diploid mean? | has 2 sets of chromosomes (2N) |
What does haploid mean? | has 1 set of chromosomes (N) |
how many chromosomes are in a diploid human cell? | 46 |
how many chromosomes are in a haploid human cell? | 23 |
what kind of human cells are haploid? | only sex cells |
what kind of human cells are diploid? | all cells EXCEPT sex cells |
what are the sex cells in men called? | sperm |
what are the sex cells in women called? | egg |
what is another word for sex cells | gamete or germ cells |
what do you call the process of sperm meeting egg | fertilization |
what do you call the cell that is formed after fertilization | zygote |
what do zygotes grow in to? | embryos |
what is the purpose of meiosis? | to create gametes/sex cells |
how many cells does meiosis create? | 4 |
are the cells from meiosis identical to eachother | no each sex cell is unique |
how many divisions take place in meiosis? | meiosis I and meiosis 2 |
what is the purpose of mitosis? | to make identical cells for growth or repair |
what is crossing over? | when chromosomes trade DNA/genes |
what phase does crossing over occur in? | prophase 1 |
what is the point of crossing over? | to increase genetic diversity |