Question

complete the sentences on the control of the cell cycle with the correct terms. 1. after s phase (click to select) appear to share a common centromere. 2. during g1, cells undergo the major portion of their (click to select). 3. during interphase, all eukaryotic cells synthesize large amounts of (click to select). 4. during g2, chromosomes begin to undergo (click to select). 5. the (click to select) is a disk - like protein structure found at the point of constriction on the chromosome.

Explanation:

1. After the S - phase of the cell cycle, DNA replication occurs and sister chromatids are formed, which share a common centromere.
2. During G1 phase, cells grow in size, synthesize proteins and organelles, and undergo the major portion of their growth.
3. During interphase (G1 + S+G2), all eukaryotic cells synthesize large amounts of RNA and proteins as they prepare for cell division.
4. During G2 phase, the cell continues to grow and prepare for mitosis, and chromosomes begin to condense in preparation for segregation.
5. The kinetochore is a disk - like protein structure found at the point of constriction (centromere) on the chromosome, which is important for the attachment of spindle fibers during cell division.

Answer:

1. Sister chromatids
2. Growth
3. RNA and proteins
4. Condensation
5. Kinetochore