Bio

posted by .

A biologist measured the amount of DNA in several single diploid cells taken from a culture. He knew that these cells could divide mitotically, but not meiotically. His data is shown below: Cell Number and DNA content in micrograms: Cell 1 (11.1 micrograms) Cell 2 (5.4 micrograms) Cell 3 (7.3 micrograms) Cell 4 ( 10.9 micrograms) Cell 5 (5.6 micrograms) Cell 6 (8.6 micrograms) Cell 7 (11.0 micrograms) Which of these cells have most likely just completed mitosis and cytokinesis? a. 1, 4, and 7 b. 3 and 6 c. 2, 3, 5, and 6 d. 2 and 5 e. No conclusion can be drawn from the data provided.

  • Bio -

    During interphase, the DNA content is doubled. After cytokinesis, the DNA content is cut in half for the daughter cells. Therefore, I would rule out cells 1, 4, and 7. After cytokinesis, the cells should have half the DNA content as the mother cell, which leaves cells 2 and 5. Cells 3, and 6 have slightly more then half, but not double the amount. I am not sure, but you can conclude that these cells are undergoing the initial parts of interphase, but they have not completed it. Therefore, answer choice d seems to be the best answer.

    I am not 100% sure, but this would be my choice.


    Best

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Science

    Can someone tell me if I answered my question correctly?
  2. biology

    a particular cell has half as much dna as some of the other cells in a mitotically active tissue. the in the question is most likely in anaphase G1 prophase metaphase G2
  3. chemistry

    - What fraction of an E coli cell is occupied by its DNA?
  4. biology

    A human cell has 10 ^14 cells and each cell has about 6.4 x 10 ^9 nucleotide pairs of DNA. What is the length, in cm, of double helix that can be formed from the total amount of DNA in a human individual?
  5. BIology

    A cell cycle is exposed to intensive UV irradiation that results in damage to the cells DNA. Shortly after UV exposure, the cell receives signals telling it to undergo cell division. What are the most likely next events to occur in …
  6. AP BIO

    1. A biologist measured the amount of DNA in several single diploid cells taken from a culture. He knew that these cells could divide mitotically, but not meiotically. His data is shown below: Cell Number and DNA content in micrograms: …
  7. Science

    Working on the Amazon River, a biologist isolated DNA from two unknown organisms, P and Q. He discovered that the adenine content of P was 15% and the cytosine content of Q was 42%. This means that: a) the amount of guanine in P is …
  8. AP Biology

    A biologist measured the amount of DNA in several single diploid cells taken from a culture. He knew that these cells could divide mitotically, but not meiotically. His data is shown below: Cell Number and DNA content in micrograms: …
  9. please help Human bio

    Aging skin begins to wrinkle because the protein (A)__________ becomes more rigid and the protein (B)__________ is reduced. Normal body cells divide 80 or 90 times before dying. When a cell divides, it makes a copy of its chromosomes …
  10. Biology

    The Hershey-Chase experiment proved that DNA was the hereditary material because a- radioactive phosphorus in viral proteins was shown not to enter bacterial cells. b- radioactive phosphorus in viral DNA was shown to enter bacterial …

More Similar Questions