Model 5 Is A Condensed Version Of Meiosis I

Question: According in Model 1, in what type of organs are the cells that enter meiosis I found?

Answer: The sex cells

Question: Considering what you already know about mitosis in cells, what event must take place during interphase before a cell proceeds to division?

Answer: DNA replication

Question: What two structures make up a single replicated chromosome?

Answer: Sister chromatids

Question: In Model 1, how many replicated chromosomes does the cell contain during prophase?

Answer: Four

Question: At which stage in meiosis I do the pairs of homologous chromosomes come together?

Answer: Late prophase I

Question: Once the chromosomes have formed a pair, what are they called?

Answer: Tetrads

Question: At the end of meiosis I, two cells have been produced. How many replicated chromosomes are in each of these cells?

Answer: Two

Question: 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?

Answer: Diploid = Prophase, metaphase and anaphase

Haploid = Telophase, after the cell has split

Question: Which of the statements below correctly describes the relationship between the cells at the end of telophase I and the original cell?

Answer: The new cells have two copies of half the genetic information in the original cell

Question: Considering the genetic makeup of the homologous pairs, will the cells at the end of telophase I be genetically identical to each other?

Answer: No, because they carry the same genes but different types