Biology - Meiosis
According in Model 1, in what type of organs are the cells that enter meiosis I found? ✔✔The
sex cells
Considering what you already know about mitosis in cells, what event must take place during
interphase before a cell proceeds to division? ✔✔DNA replication
What two structures make up a single replicated chromosome? ✔✔Sister chromatids
In Model 1, how many replicated chromosomes does the cell contain during prophase? ✔✔Four
At which stage in meiosis I do the pairs of homologous chromosomes come together? ✔✔Late
prophase I
Once the chromosomes have formed a pair, what are they called? ✔✔Tetrads
At the end of meiosis I, two cells have been produced. How many replicated chromosomes are in
each of these cells? ✔✔Two
Cells with a full set of chromosomes are referred to as diploid o 2n, whereas cells with half the
chromosomes are haploid or n. At which stage(s) of meiosis I are the cells diploid and at which
stages are they haploid? ✔✔Diploid = Prophase, metaphase and anaphase
Haploid = Telophase, after the cell has split
Which of the statements below correctly describes the relationship between the cells at the end of
telophase I and the original cell? ✔✔The new cells have two copies of half the genetic
information in the original cell
Considering the genetic makeup of the homologous pairs, will the cells at the end of telophase I
be genetically identical to each other? ✔✔No, because they carry the same genes but different
types
According to Model 2, where did each of the cells come from that started meiosis II?
✔✔Meiosis I
In meiosis I, during anaphase I, which structures separated - homologous chromosomes or sister
chromatids? ✔✔Homologous chromosomes
According in Model 1, in what type of organs are the cells that enter meiosis I found? ✔✔The
sex cells
Considering what you already know about mitosis in cells, what event must take place during
interphase before a cell proceeds to division? ✔✔DNA replication
What two structures make up a single replicated chromosome? ✔✔Sister chromatids
In Model 1, how many replicated chromosomes does the cell contain during prophase? ✔✔Four
At which stage in meiosis I do the pairs of homologous chromosomes come together? ✔✔Late
prophase I
Once the chromosomes have formed a pair, what are they called? ✔✔Tetrads
At the end of meiosis I, two cells have been produced. How many replicated chromosomes are in
each of these cells? ✔✔Two
Cells with a full set of chromosomes are referred to as diploid o 2n, whereas cells with half the
chromosomes are haploid or n. At which stage(s) of meiosis I are the cells diploid and at which
stages are they haploid? ✔✔Diploid = Prophase, metaphase and anaphase
Haploid = Telophase, after the cell has split
Which of the statements below correctly describes the relationship between the cells at the end of
telophase I and the original cell? ✔✔The new cells have two copies of half the genetic
information in the original cell
Considering the genetic makeup of the homologous pairs, will the cells at the end of telophase I
be genetically identical to each other? ✔✔No, because they carry the same genes but different
types
According to Model 2, where did each of the cells come from that started meiosis II?
✔✔Meiosis I
In meiosis I, during anaphase I, which structures separated - homologous chromosomes or sister
chromatids? ✔✔Homologous chromosomes
