Final answer:
The true statement is that chromosomes are formed by chromatin condensing together. Chromosomes are visible during cell division and consist of sister chromatids joined at the centromere.
Step-by-step explanation:
The statement that is TRUE is: "A CHROMOSOME is formed by many coils of CHROMATIN condensed together." During the cell cycle, specifically before the cell divides, the chromatin, which is composed of DNA and proteins, coils up more tightly to form chromosomes. This process is essential for the chromosomes to be clearly visible under the microscope and ensures their proper segregation during cell division. Chromatin exists as a grainy material in non-dividing cells, and when a cell is about to divide, it condenses into the more compact structures known as chromosomes. Each chromosome, after DNA replication, consists of two identical copies called sister chromatids, connected at a region called the centromere.