A human diploid cell at G1 contains 6 picograms of DNA. A human cell at metaphase...

A human diploid cell at G1 contains 6 picograms of DNA. A human cell at metaphase II of meiosis would contain ............. picograms of DNA. (Provide a numerical response)

A human diploid cell at G1 contains 6 picograms of DNA. Each cell produced at the end of meiosis would contain ............ picograms of DNA. (Provide a numerical response)

Expert Solution

1.A human diploid cell at G1 contains 6 picograms of DNA. A human cell at metaphase II of meiosis would contain 6 picograms of DNA.

explanation: The DNA content in the cells doubles in the S phase and proceed into meiosis 1 (which is typically mitosis itself) the cell after the meiosis 1 has 6pg dna. the cell then enters the meiosis 2 . so in the metaphase 2 stage the DNA content will be 6 picogram.

2.A human diploid cell at G1 contains 6 picograms of DNA. Each cell produced at the end of meiosis would contain 3 picograms of DNA.

as explained earlier the DNA content doubles in the s phase (6 becomes 12)and the doubled content halve sat the end of meiosis 1.ie, 12 becomes 6. The cell on completing meiosis 2 again reduces the DNA content to half making the DNA amount 3 picograms.

gladiator answered 2 years ago

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