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11.4 wkbk KEY
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16. Prophase I
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16. Metaphase I
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16. Anaphase II
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17. Interphase Interphase (technically not part of meiosis, you’re right!)
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17. Telophase II and Cytokinesis
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18. The diagram shows Crossing over 19
18. The diagram shows Crossing over 19. It occurs during Prophase I of meiosis 20. The result is a new combination of alleles/genes (Differing chromosomes)
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MITOSIS MEIOSIS ASEXUAL SEXUAL (FIRST STAGE) 2 4
FORM OF REPRODUCTION ASEXUAL SEXUAL (FIRST STAGE) NUMBER OF DAUGHTER CELLS 2 4 CHANGE IN CHROMOSOME NUMBER NO CHANGE (STAYS DIPLOID) HALVED OR CUT IN HALF (HAPLOID) NUMBER OF CELL DIVISIONS 1 DIFFERENCES IN ALLELES BETWEEN PARENT AND DAUGHTER CELLS DOESN’T CHANGE GENETICALLY DIFFERENT FROM PARENT
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22. A diploid cell that enters mitosis with 16 chromosomes will divide to produce __2__ daughter cells. Each of these daughter cells will have __16__ chromosomes. *Remember, mitosis doesn’t change the daughter cells – they’re identical to parent
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23. If the diploid number of chromosomes for an organism is 16, each daughter cell after mitosis will contain __16__ chromosomes.
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24. A diploid cell that enters meiosis with 16 chromosomes will pass through __2__ cell divisions, producing __4__ daughter cells, each with __8__ chromosomes. Diploid cell haploid cell Double - half
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25. Gametes have a haploid number of chromosomes.
Half as many as a normal body cell Ex: Humans have 46 chromosomes, except in gametes (sperm/egg) which have 23 (haploid)
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26. If an organism’s haploid number is 5, its diploid number is 10.
If given the haploid, double it If given the diploid, halve it
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27. While a haploid number of chromosomes may be even or odd, a diploid number is always even.
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