Upon undergoing meiosis, a cell possessing 40 chromosomes produces four resulting cells, each containing_____________________?
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Answer: B. 20 chromosomes
Explanation
Meiosis is a specialized type of cell division that reduces chromosome number by half. Starting with a diploid cell containing forty chromosomes produces four distinct haploid cells. Each resulting daughter cell therefore contains exactly twenty chromosomes after two divisions. Meiosis occurs in germ cells to produce gametes for sexual reproduction processes. The process involves one round of DNA replication followed by two sequential cell divisions. Genetic recombination happens during prophase I to increase diversity among daughter cells.
Chromosome reduction ensures offspring maintain the correct species-specific chromosome number upon fertilization. Errors during meiotic division can lead to genetic disorders such as chromosomal trisomy. Plant breeders use meiotic principles to develop hybrid crop varieties with desired traits. Ten chromosomes would represent an excessive reduction beyond standard meiotic halving. Forty chromosomes would indicate mitotic division rather than meiotic reductional division. The correct mathematical half of forty is twenty chromosomes per daughter cell.
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- Agriculture
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- Agriculture
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- medium
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