biology

posted by .

When do strands of DNA form chromoshomes?
What is a replicated chromosome? How does this differ from a chromosome pair? Is a cell containing replicated chromosomes haploid, diploid, or neither? Why? and Why is anaphase unique in terms of chromosome number?

  • biology -

    When does DNA replication take place in the cell cycle?
    In the middle of the interphase, and the period when it is occurring is called the S phase (Campbell, Simon, Reece, & Dickey, 1946-2004, p.125).
    When do strands of DNA form chromoshomes?
    During the S phase also.
    What is a replicated chromosome? How does it differ from a chromosome pair?
    Replicated chromosomes are chromosomes that continously replicate. Like your skin cells or the lining in your stomach that help food dissolve. The chromosome pairs differ because they are identical chromosomes, each of which consists of two identical sister chromatids after chromosome duplication (Campbell, Simon, Reece, & Dickey, 1946-2004, p131).
    Is a cell containing replicated chromosomes haploid, diploid, or neither? Why?
    Humans are considered diploid organisms because all body cells contain pairs of homologous chromosomes. A cell with a single chromosome set is called a haploid cell; it has only one member fo each homologous pair. So I guess a replicated chromosome is neither haploid or diploid, because homologous chromosomes are considered a pair not a replicated one.
    Why is anaphase unique in terms of chromosome numbers?
    Because in this anaphase the homologous chromosomes split up in contrast to mitosis where the sister chromatids migrate as a pair.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Biology

    A cell with replicated chromosomes. Pick haploid, diploid, or none. Explain why you chose the one you did. My answer:(I am not sure if this is complete enough?
  2. Science-Please Help

    I've got to describe homologeous chromosomes in terms of the type and # of genes that they possess. How would I describe that?
  3. bio

    Is a cell containing replicated chromosomes haploid,diploid, or neither?
  4. biology

    rana pipiens, a species of frog, has a diploid chromosome number of 26. a. how many chromosomes are present during metaphase i?
  5. 7th grade science Ms. Sue please

    1. What steps in meiosis are similar to steps of mitosis?
  6. 7th grade science Ms. Sue please only 5 questions

    11. Which of these is selectively permeable?
  7. Biology

    What does the notation 4n = 28 tell you about how many types of chromosomes there are and how many of each type of chromosome are present in a cell?
  8. Biology

    Caenorhabditis elegans hermaphrodites have six different homologous chromosome pairs: five pairs of autosomes (called I-V) and one pair of sex chromosomes (called X). Hermaphrodites can either self-fertilize or they can be fertilized …
  9. Biology

    Which of the following cells check for during the G2 check point?
  10. biology

    At what stages of meiosis 1 and 2 are the chromosomes unreplicated and replicated At what stages of meiosis 1 and 2 are the chromosomes diploid and haploid

More Similar Questions