Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
Which stage of meiosis is characterized by homologous chromosomes aligning at the cell's equatorial plate?
A
Anaphase II
B
Prophase I
C
Telophase I
D
Metaphase I
Verified step by step guidance
1
Understand the process of meiosis, which consists of two main divisions: Meiosis I and Meiosis II. Meiosis I is focused on separating homologous chromosomes, while Meiosis II separates sister chromatids.
Recall the stages of Meiosis I: Prophase I, Metaphase I, Anaphase I, and Telophase I. Each stage has distinct characteristics and roles in the division process.
Focus on Metaphase I, where homologous chromosomes (pairs of chromosomes, one from each parent) align at the cell's equatorial plate. This alignment is facilitated by the spindle fibers attaching to the centromeres of the chromosomes.
Compare Metaphase I to other stages: In Prophase I, homologous chromosomes pair and exchange genetic material (crossing over). In Anaphase I, homologous chromosomes are pulled apart to opposite poles. In Telophase I, the cell prepares to divide into two daughter cells.
Conclude that the stage characterized by homologous chromosomes aligning at the cell's equatorial plate is Metaphase I, as this is the defining feature of this stage in meiosis.