A cell biologist determines that diploid cells from a particular species of grasshopper contain 200 picograms of DNA per cell du
ring the G2 stage of interphase. Based on this finding, how many picograms of DNA should be present in a single cell from this species during metaphase I of meiosis? (Enter the number only, not the units.)
The cell cycle in eukaryotes mostly takes place in four phases: G₁, S, G₂ and M phase in sequence.
The DNA replication takes place during S phase which doubles the amount of DNA in a cell after which during M- phase the DNA divides into the daughter cell.
The amount of DNA present during G₂ phase is the 200 pg which will remain same until anaphase I as the segregation of chromosomes to the daughter cells takes place in the anaphase. Therefore, the amount of DNA observed after G₂ phase will remain 200 pg till metaphase I.
I believe once we locate intelligent life out in the universe, we will have completely made “One Large Step For ManKind”. For example, a system near ours (I forgot the name) has 7 exoplanets that may contain life on them!! Exciting right?!!
