Metaphase I (Meiosis) describes...

• A. Sister chromatids separate
• B. Nuclear envelope reforms
• C. Homologous chromosomes attach themselves to spindle fibres and line up along the equatorial plate
• D. DNA replication occurs

Answer: (C)

In Metaphase I of meiosis, homologous chromosome pairs align along the cell’s equator as pairs (tetrads) and each chromosome is attached to spindle fibers from opposite poles via kinetochores. This setup ensures that when the next stage begins, the homologous chromosomes are pulled to opposite poles, reducing the chromosome number in the resulting cells.

This is the best description because it directly characterizes what happens specifically in Metaphase I: the alignment of homologous chromosomes at the metaphase plate and their attachment to spindle fibers from opposite sides. The other events occur at different stages—sister chromatids separate during later stages (Anaphase II), the nuclear envelope reforms during Telophase, and DNA replication happens earlier in interphase (S phase) before meiosis starts.