Question
Characteristic features of mitotic metaphase are ______
A. Each chromosome is unpaired
B. 2n chromosomes are seen
C. Each bivalent has four chromatids
D. Centromeres of all the chromosomes lie on the equatorial plate
E. Homologus chromosomes form bivalents
Choose the correct answer from the options given below:
This question was previously asked in
CUET PG 2026 Agri-Business Management Question Paper (25-Mar-2026) (Shift 2)
The correct answer is
A, B & D Only
Metaphase Features Explained
The question requires identifying the characteristic features present during the metaphase stage of mitosis.
Statement Analysis for Mitotic Metaphase
- A. Each chromosome is unpaired: During mitotic metaphase, chromosomes align individually along the metaphase plate. Homologous chromosomes do not pair up as they do in meiosis. Thus, this statement is TRUE.
- B. 2n chromosomes are seen: Mitosis occurs in diploid cells, maintaining the chromosome number. At metaphase, the cell contains 2n chromosomes, where each chromosome consists of two identical sister chromatids joined at the centromere. Thus, this statement is TRUE.
- C. Each bivalent has four chromatids: Bivalents, which are pairs of homologous chromosomes each with two chromatids, are characteristic of meiosis I, not mitosis. This statement is FALSE.
- D. Centromeres of all the chromosomes lie on the equatorial plate: A key event in metaphase is the alignment of all chromosomes, specifically their centromeres, along the equatorial plate (metaphase plate) of the cell. Thus, this statement is TRUE.
- E. Homologous chromosomes form bivalents: As mentioned for statement C, the formation of bivalents involves the pairing of homologous chromosomes, which is specific to meiosis and does not occur during mitosis. This statement is FALSE.
Conclusion on Mitotic Features
The analysis shows that statements A, B, and D accurately describe the features of mitotic metaphase.
The correct combination of features is therefore A, B, and D.
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