Question

chromosomal inheritance: identify the stages of meiosis
identify the stages of meiosis by filling in the blanks, and then rearrange the sentences to place the stages in the correct order starting with prophase l.
drag the text blocks below into their correct order.
the two members of each homologous pair are pulled to opposite poles of the cell while sister chromatids remain attached during _.
sister chromatids separate and are pulled to opposite poles of the cell during _.
a new spindle apparatus begins to form in two separate haploid cells during _.nuclear envelopes reform around four separate haploid nuclei during _.
synapsis of homologous chromosomes and crossing - over take place during _.
nuclear envelopes reform around two separate haploid nuclei during _.
chromosomes line up in pairs along the _ plate during _.
unpaired chromosomes line up along the metaphase plate during _.

Explanation:

• First sentence: In anaphase I, homologous pairs are separated while sister chromatids stay attached.
• Second sentence: Sister chromatids separate in anaphase II.
• Third sentence: Prophase II is when a new spindle forms in haploid cells.
• Fourth sentence: Telophase II has nuclear envelopes reforming around four haploid nuclei.
• Fifth sentence: Synapsis and crossing - over occur in prophase I.
• Sixth sentence: Nuclear envelopes reform in telophase I (around two haploid nuclei).
• Seventh sentence: Chromosomes line up in pairs along the metaphase plate in metaphase I.
• Eighth sentence: Unpaired chromosomes line up in metaphase II.

Answer:

1. Synapsis of homologous chromosomes and crossing - over take place during prophase I.
2. Chromosomes line up in pairs along the metaphase plate during metaphase I.
3. The two members of each homologous pair are pulled to opposite poles of the cell while sister chromatids remain attached during anaphase I.
4. Nuclear envelopes reform around two separate haploid nuclei during telophase I.
5. A new spindle apparatus begins to form in two separate haploid cells during prophase II.
6. Unpaired chromosomes line up along the metaphase plate during metaphase II.
7. Sister chromatids separate and are pulled to opposite poles of the cell during anaphase II.
8. Nuclear envelopes reform around four separate haploid nuclei during telophase II.