WebChromosomes, the spiraling strands of DNA that package the series of chemical bits called genes, are easily visible through a strong enough microscope if the right stain is used. In fact, the development in the 19th century of aniline dyes that make the chromosomes stand out led to their discovery. WebOnly count as prophase cells that contain distinctly visible chromosomes. 1. Systematically scan the root tip moving upward and downward through a column of cells. 2. Tally each cell in a stage of mitosis that you observe, being careful not to record the same cell twice. Tally the stages of 20 cells mitotic cells. 3. Tally numbers in the table ...

Chromosomes (article) Cell cycle Khan Academy

WebDuring the first part of anaphase, the kinetochore microtubules shorten, and the chromosomes move toward the spindle poles. During the second part of anaphase, the spindle poles separate as the ... WebAn exchange of chromosome segments between non-sister homologous chromatids occurs and is called crossing over. ... and are called tetrads because the four sister chromatids of each pair of homologous chromosomes are now visible. The crossover events are the first source of genetic variation produced by meiosis. A single crossover event between ... chinese fairy book

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WebChromosomes become visible during prophase. A more accurate answer says that the chromosomes are visible during late prophase, which is sometimes called prometaphase. See eNotes Ad-Free... WebChromatin is found in all stages of the cell cycle and they undergo further coiling to form chromosomes that are distinctly visible during cell division as highly condensed structures (upto several thousand nm). Depending … WebThe chromosomes overlap one another and appear like a ball of wool, thus, the ends of the chromosomes are not clear. B) During metaphase, the chromosomes are condensed. … chinese fairy bells