Meiosis - CSCC
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| In 1882, Pierre-Joseph van Beneden, was surprised to find the same number of chromosomes in all cells of the roundworm Ascaris. A) True B) False | show 🗑
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| A ________ cell contains two versions of each chromosome. | show 🗑
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| show | False
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| show | True
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| _____________ cells are genetically identical to the zygote from which they originated. A) Somatic B) Germ-line C) Body D) All of the above | show 🗑
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| show | fertilization
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| Before the beginning of either meiosis or mitosis, the chromosomes have replicated during | show 🗑
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| show | prophase I
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| show | metaphase I
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| show | true
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| At the end of meiosis II, each of the haploid cells contains ________ of every chromosome in the set. | show 🗑
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| __________________ draws homologous chromosomes together all along their lengths creating an opportunity where two homologues can physically exchange portions of themselves. | show 🗑
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| show | False
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| show | True
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| In most respects, ____________ is identical to a normal mitotic division | show 🗑
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| Sexual reproduction increases genetic variability through A) independent assortment B) crossing over C) random fertilization D) all of the above | show 🗑
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| show | True
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| Reproduction that involves the alternation of meiosis and fertilization is called asexual reproduction. A) True B) False | show 🗑
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| show | False
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| An egg and a sperm unite to form a new organism. In order to prevent the new organism from having twice as many chromosomes as its parents | show 🗑
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| The diploid number of chromosomes in humans is 46. The haploid number is | show 🗑
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| show | 1n gametes (haploid), followed by 2n zygotes (diploid).
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| The purpose of meiosis I is to | show 🗑
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| show | separate the duplicated sister chromatids.
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| During which stage of meiosis does crossing over occur? | show 🗑
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| Synapsis is the process whereby | show 🗑
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| show | make diploid cells/make haploid cells
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| show | has a lot of genetic reassortment due to what can happen in meiosis I.
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| show | sexual reproduction
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| show | sister chromatids
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