identical DNA molecules, called , which separate during mitosis. interphase 2. After chromosomes condense, the is the region where the identical DNA molecules are most tightly attached to each other. centrosome(s) kinetochore(s) 3. During mitosis, microtubules attach to chromosomes at the . mitotic spindle(s) 4. In dividing cells, most of the cell’s growth occurs during . chromatin sister chromatid(s) 5. The _ is a cell structure consisting of microtubules, which forms during early mitosis and plays a role in cell division. chromosome(s) 6. During interphase, most of the nucleus is filled with a complex of DNA and protein in a dispersed form called . 7. In most eukaryotes, division of the nucleus is followed by , when the rest of the cell divides. 8. The are the organizing centers for microtubules involved in separating chromosomes during mitosis.
Reset Help centromere(s) cytokinesis 1. DNA replication produces two identical DNA molecules, called , which separate during mitosis. interphase 2. After chromosomes condense, the is the region where the identical DNA molecules are most tightly attached to each other. centrosome(s) kinetochore(s) 3. During mitosis, microtubules attach to chromosomes at the . mitotic spindle(s) 4. In dividing cells, most of the cell’s growth occurs during . chromatin sister chromatid(s) 5. The is a cell structure consisting of microtubules, which forms during early mitosis and plays a role in cell division. chromosome(s) 6. During interphase, most of the nucleus is filled with a complex of DNA and protein in a dispersed form called . 7. In most eukaryotes, division of the nucleus is followed by , when the rest of the cell divides. 8. The _
are the organizing centers for microtubules involved in separating chromosomes during mitosis.

The Correct Answer and Explanation is:

Here are the correct answers filled into the sentences:

  1. DNA replication produces two identical DNA molecules, called sister chromatids, which separate during mitosis.
  2. After chromosomes condense, the centromere is the region where the identical DNA molecules are most tightly attached to each other.
  3. During mitosis, microtubules attach to chromosomes at the kinetochore.
  4. In dividing cells, most of the cell’s growth occurs during interphase.
  5. The mitotic spindle is a cell structure consisting of microtubules, which forms during early mitosis and plays a role in cell division.
  6. During interphase, most of the nucleus is filled with a complex of DNA and protein in a dispersed form called chromatin.
  7. In most eukaryotes, division of the nucleus is followed by cytokinesis, when the rest of the cell divides.
  8. The centrosomes are the organizing centers for microtubules involved in separating chromosomes during mitosis.

Explanation:

Mitosis is a key part of the cell cycle, ensuring that each daughter cell receives an identical set of chromosomes. DNA replication occurs before mitosis, during the S phase of interphase. This process produces two identical DNA molecules, known as sister chromatids, which remain connected at a specific region called the centromere. As the cell enters mitosis, chromatin—loosely packed DNA—condenses into visible chromosomes. The kinetochores, which are protein structures at the centromeres, serve as attachment points for spindle microtubules. These microtubules originate from centrosomes, which act as the main microtubule-organizing centers. The entire structure that moves the chromosomes is called the mitotic spindle.

During interphase, especially in the G1 phase, the cell grows and prepares for DNA replication. After mitosis (nuclear division), the cell completes division through a process called cytokinesis, splitting the cytoplasm and organelles to form two daughter cells. Understanding these terms and their roles gives insight into how genetic material is accurately distributed during cell division.

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