Question

Which image best represents a cell in metaphase?

Answer 1

Hint: Cell division is a very important process in living organisms . During the division of a cell, DNA replication and cell growth also take place . All these processes that mean cell division DNA replication and cell growth have to take place in a coordinated way to ensure correct division and formation of the correct cell containing intact genome. Cell cycle is divided into two phases which are interphase and mitosis phases . The interfaces are further divided into three phases which are gap 1 phase , synthesis phase and gap 2 phase.

Complete answer:
1.M phase which is also known as mitosis phase . Divided into four phases prophase , metaphase , anaphase and telophase .
2.During Metaphase complete disintegration of a nuclear envelope takes place which marks the start of the second phase of mitosis , helping the chromosomes to spread to the cytoplasm of the cell .
3.During metaphase condensation of the chromosomes is completed and they can be observed clearly under the microscope .
4.At the stage of the metaphase chromosome is made up of two sister chromatids which are held together by the centromere .
5.Small disc-shaped structures at the surface of the centromere are called Kinetochores . This structure serves as the site of attachment of spindle fibres to the chromosome moved into position at the centre of the cell .
6.So according to the description of the metaphase . The image of C correctly corresponds to the metaphase of the cell cycle .

Hence, the correct answer is option (C)

Note: Metaphase is the stage of cell division where morphology of the chromosome is most easily studied. Chromosomes are aligned at the equator in this stage.