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9.5 bio vocab
Meiosis functions in sexual reproduction
| Term | Definition |
|---|---|
| Meiosis | type of cell division that produces four cells, each with half as many chromosomes as the parent cell |
| Karotype | Display of a person's 46 chormosomes |
| Homologous Chromosomes | One of a pair of matching chromosomes, one inherited from each parent |
| Sex Chromosomes | one of two chromosomes of the 23rd pair of human chromosomes, which determine an individual's gender |
| Diploid | having two homologous sets of chromosomes |
| Gamete | egg or sperm sex cell that contains a single set of chromosomes, one from each homologous pair |
| Haploid | having a single set of chromosomes |
| Fertilization | the fusion of the nucleus of a haploid sperm cell and the nucleus of a haploid egg cell, forming a diploid zygote |
| Zygote | diploid cell formed when the nucleus of a haploid sperm cell fuses with the nucleus of a haploid egg cell |
| Tetrad | group of four chromatids formed during prophase I of meiosis by the two sister chromatids in each of the two homologous chromosomes |