A bivalent consists of:
- two chromatids and one centromere
- two chromatids and two centromeres
- four chromatids and two centromeres
- four chromatids and four centromeres.
The Correct Option is C
Approach Solution - 1
A bivalent consist of four chromatids and two centromeres. Bivalent is a pair of homologous chromosome lying together in the zygotene stage of prophase I of first meiotic division.
So, the correct option is (C): four chromatids and two centromeres.
Approach Solution -2
A bivalent denotes a pair of two homologous chromosomes. Although each chromosome consists of two chromatids, there are a total of four chromatids and two centromeres, with each centromere positioned at the center.
So, the correct option is (C): four chromatids and two centromeres.
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Concepts Used:
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- A cell is derived as the functional and structural unit of life. Every cell is surrounded by a cell membrane that dissects the external and internal environments of the cell. The interior environment of a cell is called the cytoplasm.
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Parts of Cell:
The different parts of a cell and their functions are as follows:
- Cell Membrane
- Cell Wall
- Nucleus
- Cytoplasm
