BIOL 1201 Lecture Notes - Lecture 4: Interphase, Aneuploidy, Zygosity
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Related Questions
Suppose that a cell in G1 contains 10 picograms (pg) of DNA. How many picograms would you expect to find in this same cell during G2?
Note that a picogram (pg) is a measured quantity/mass. Think about how the amount of DNA changes as the cell progresses from G1 to G2.
Suppose that a single somatic cell undergoes mitosis and cytokinesis. If you compared the original parent cell in G1 with the daughter cells that are produced, which of the following statements would be true?
_____________________
The daughter cells have the same number of chromosomes and half the amount of DNA. |
The daughter cells have half the amount of cytoplasm and half the amount of DNA. |
The daughter cells have half the number of chromosomes and half the amount of DNA. |
The daughter cells have the same number of chromosomes and the same amount of DNA. |
The daughter cells have the same number of chromosomes and twice the amount of DNA. |
Somatic cells from Alligator (Alligator mississippiensis) have 32 chromosomes and contain approximately 4 picograms (pg) of nuclear DNA. In the following table, fill in the blanks for the number of chromosomes and the amount of nuclear DNA (pg) that are found in each cell at the following stages?
USE THE NUMBERS SPECIFIC FOR THE TASMANIAN DEVIL.
Stage of Cell | # chromosomes | Amount of nuclear DNA/cell (pg) |
In G1 | ||
In G2 | ||
End of Mitosis After cell division | ||
End of Meiosis I After cell division | ||
End of Meiosis II After cell division |