Question

Chromosomes arrange at the equatorial plate in which stage?

• A. Prophase
• B. Metaphase
• C. Anaphase
• D. Telophase

Answer 1

The correct option is B

Metaphase

The correct option is B

Explanation of the correct option:

1. Metaphase is the second phase in mitosis following the prophase.
2. Chromosomes are arranged at equatorial plate of nucleus.
3. Each chromosome is attached to spindle fibres at the centromere.

Explanation of the incorrect options:

Option A:

1. Prophase is the first stage of mitosis.
2. Chromatin fibres condense to form chromosomes.
3. Chromosomes split longitudinally to form chromatids which are attached together at centromere.

Option C:

1. Anaphase is the third stage of mitosis following metaphase.
2. Centromere division occurs and 2 sister chromatids separate.
3. Sister chromatids move towards opposite poles forming two groups of chromosomes.

Option D:

1. Telophase is the last phase of mitosis.
2. The daughter chromosomes separate and start forming chromatin reticulum.

Final answer: Chromosomes arrange at the equatorial plate of the nucleus during Metaphase.