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What is a haploid reproductive cell that unites with another haploid reproductive cell? |
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A gamete.
During meiosis I all chromosomes are replicated so there are two copies of each chromosome. Then, during meiosis II the process (generally speaking) is repeated without the replication step resulting in cells (called gametes) that contain only ONE copy of each chromosome. This is what's known as a haploid cell (n). When two haploid cells combine in humans (sperm and egg), the resulting cell (zygote) is now diploid (2n) and contains one full set of chromosomes.
During meiosis I all chromosomes are replicated so there are two copies of each chromosome. Then, during meiosis II the process (generally speaking) is repeated without the replication step resulting in cells (called gametes) that contain only ONE copy of each chromosome. This is what's known as a haploid cell (n). When two haploid cells combine in humans (sperm and egg), the resulting cell (zygote) is now diploid (2n) and contains one full set of chromosomes.
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