Match the chromosome activity to the phase of the cell cycle Chromosomes are dec

Question

Match the chromosome activity to the phase of the cell cycle Chromosomes are decondensed and not visible with the use of a microscope Chromosome double in number during this phase and condense to form the characteristic X shape Chromosomes are checked for any replication errors Chromosome attach to the kinetochore microtubules Chromosomes in the form of attached sister chromatids are lined up along the equator of the cell The sister chromatids are pulled apart to either end of the cell 4The chromosome decondense and the nuclear envelope reforms around the chromosomes A-synthesis phase B.metaphase C-anaphase D.gap phase1 E. telophase F.gap phase 2 G.prophase -

Explanation / Answer

Chromosomes are decondensed and not visible with the use of a microscope

D. Gap-phase 1

Chromosome double in number during this phase and condense to form the characteristic X shape

A. Synthetic phase

Chromosomes are checked for the replication errors

F, gap phase 2

Chromosome attach to the kinetochore microtubules

G. Prophase.

Chromosome in the form of attached sister chromatids are lined up along the equator of the cell

B. Metaphase

The sister chromatids are pulled apart to either ends of the cell

C. Anaphase

The chromosome decondense and the nuclear envelope reforms around the chromosomes

E. telophase

All the events associated with the cell division are called cell cycle. The cell cycle is divided into two stages interphase and mitotic phase. Interphase is a non-dividing stage and it is longer period but mitotic phase is a dividing stage in which the genetic material and cytoplasm are distributed into daughter cells. The interphase divided into three stages G1, S, and G2 phases. In G1 Phase or gap1 phase cells accumulate the energy and prepare themselves for the DNA replication and during this phase the chromatin is decondensed and not visible. In S phase or synthetic phase of the cell cycle, the DNA (chromosomes) is duplicated i.e. the new daughter DNA copies are produced from the parental DNA. In G2 phase/ gap2 phase, the cells synthesize the new RNA and proteins which required for the spindle formation and it also checks the replication errors. The mitotic phase divided into two stages karyokinesis and cytokinesis. In karyokinesis, the duplicated DNA is distributed to the daughter cells. It consists of 4 phases. In prophase, the chromatin undergoes condensation and converted into the chromosomes. During this stage the chromosomes are observed in microscope and they are attached by the spindle fibers. In metaphase the chromosomes are arranged at the center of cell called metaphase plate. In anaphase, the sister chromatids move opposite towards the centrioles. In telophase, the nuclear membrane reappears and two daughter cells will form.

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