Biology Questions and Answers

Biology Questions and Answers

each of the two haploid cells created in
meiosis I, giving birth to cells. four haploid

Meiosis II is a process idmitosis. entical to

38. In which meiotic division
    does the separation of the
    homologous occur? What are
    the ploidies of the generated
    cells after the end of that
    process?

The separation of the homologous

chromosomes occurs iof meiosis, or meiosis I.n the first division After the end of (^)
this cell division two haploid cells are
made, each having differentchromosomes (with no set of (^)
homologous). Note that in the cells
generated after meiosis I eachchromosome is still duplicated since (^) the
homologous chromosomes and not the
identical chromatids were separated.

39. In which meiotic division
    does the separation of
    identical chromatids occur?
    After the end of this process
    what are the ploidies of the
    new cells?

The separation occurs in the second meiotic division,of identical chromatids or (^)
meiosis II. After this cell division(similar to mitosis and that does not (^)
alter ploidy) the cells are still haploid
(they havmeiosis I).e become haploid after

40. How many cells are made
    after meiosis I and meiosis II?
    After meiosis I two cells with already
    separated After meiosis II four cells are homologous are created.created.


41. What are the periods of
    the first meiotic division?

Meiosis I is divided into prophase I,metaphase I, anaphase I and telophase (^)
I.

42. In which period of meiosis
    does the pairing of
    homologous chromosomes
    occur?
    The pairing of homologous
    chromosomes is a vital step because the rightness of the for meiosis
    homologous separation depends on the
    process. This eof the cell division.vent occurs in prophase I


43. What is crossing over? In
    which period of meiosis does
    this event occur?
    Crossing ovof chromosomaler is th fragments betweene eventual exchange

homologous chphenomenon occurs iromosomes. Tn prophase I whenhe (^)
homologous chCrossing over is of great impromosomes arortance fe paired.or (^)
evolution and biodiversity since it
http://www.biology-questions-and-answers.com