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Chromosomes first become visible during the prophase stage of cell division, specifically in mitosis and meiosis. During prophase, the chromatin condenses into distinct, tightly coiled structures, making them observable under a microscope. This process facilitates the proper segregation of genetic material during cell division.

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In Meiosis when the chromosomes first become visible in?

In meiosis, chromosomes first become visible during prophase I. This is when homologous chromosomes condense and pair up, forming structures called tetrads. The visibility of chromosomes is facilitated by the coiling and shortening of chromatin, making them distinct under a microscope. This stage is crucial for genetic recombination, as crossing over occurs between homologous chromosomes.


What phase does chromosomes first appear to be double?

Chromosomes first appear to be double during the S phase of the cell cycle when DNA replication occurs. This results in two identical sister chromatids joined by a centromere in preparation for cell division.


Is it true or false that the first step in mitosis is the separation of each pair of chromosomes?

False. The first step in mitosis is prophase, during which the chromosomes condense and become visible, but the separation of each pair of chromosomes occurs later during anaphase. In prophase, the nuclear envelope breaks down, and the spindle apparatus begins to form, preparing the chromosomes for separation.


How do the chromosomes become different from eachotther in meiosis?

The chromosomes become different from each other due to crossing over which occurs during prophase I.


What phase does DNA scrunch up and the chromosomes are first visible?

During prophase of mitosis, DNA condenses and coils into visible chromosomes. This phase marks the beginning of the cell division process, where chromosomes pair up and become more distinguishable under a microscope.

Related Questions

Doubled chromosomes first become visile in which step of mitosis?

double chromosomes first become visible in which step of mitosis?


Which phase do chromosomes first become visible?

Interphase as they become decondenced


What is the first stage of mitosis where the chromosomes become shortened and doubled?

Prophase


Chromosomes first become visible during which phase of mitosis?

They first become visible during prophase of mitosis.


When does a chromosome first become visible in mitosis?

During the Prophase. :)Chromosomes become highly condensed.They are visible to light microscope,not naked eye


In Meiosis when the chromosomes first become visible in?

In meiosis, chromosomes first become visible during prophase I. This is when homologous chromosomes condense and pair up, forming structures called tetrads. The visibility of chromosomes is facilitated by the coiling and shortening of chromatin, making them distinct under a microscope. This stage is crucial for genetic recombination, as crossing over occurs between homologous chromosomes.


When phase of mitosis do chromosomes first become distinguishable from one another?

in the late prophase this phenomenon occur


Name the phase of cell division when duplicated chromosomes first appear?

The phase of cell division when duplicated chromosomes first appear is called the prophase. In prophase, the chromatin condenses into visible chromosomes, and the nuclear envelope breaks down, allowing the chromosomes to be more clearly visible.


What phase does chromosomes first appear to be double?

Chromosomes first appear to be double during the S phase of the cell cycle when DNA replication occurs. This results in two identical sister chromatids joined by a centromere in preparation for cell division.


What stage does rod-shaped chromosomes are first visible?

Rod-shaped chromosomes are first visible during prophase of mitosis. At this stage, the chromosomes condense and become visible as rod-shaped structures in preparation for cell division.


What phases are chromosomes not visible?

Interphase and Telophase


What is the first clue that mitoosis has begun?

The first clue that mitosis has begun is the condensation of genetic material into visible chromosomes. This occurs during the prophase stage of mitosis when the chromosomes become visible under a microscope.