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Biology
Chapter 11
| Question | Answer |
|---|---|
| Cells that have one set of chromosomes are called _______. | haploid |
| Cells that have two set of chromosomes are called _______. | diploid |
| In life cycle that alternate between haploid and diploid stages, _________ acts to reduce the number of chromosomes per cell from two sets to one set. | meiosis |
| During fertilization, each haploid ________ contains the entire genetic contribution from one of the two parents. | gamete |
| In life cycles that alternate between haploid and diploid stages, _______ acts to keep the number of chromosomes per cell the same. | mitosis |
| In animals, a single diploid cell called a ________ divides by mitosis to give rise to all the cells of the adult body. | zygote |
| In life cycles that alternate between haploid and diploid stages, ____________ acts to double the number of chromosome per cell from one set to two sets | fertilization |
| In animals, cells that will eventually undergo meiosis to produce the gametes are set aside early in the course of development. These cells are called | germ-line cells |
| The number of chromosomes per cell is reduced from two sets to one set during? | meiosis 1 |
| During meiosis 1, the 2 kinetochores of sister chromatids fused and kinetochore microtubules from one pole of the cell attach to the fuse kinetochore. This is important because it ensures that during anaphase 1 | sister chromatids are pulled toward the same pole of the cell |
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458Jenna