CSU LIFE 102 FINAL SCRIPT 2026 LIFE
SCIENCE QUESTIONS ANSWERS
COMPLETE A+
◉ What happens during prophase?
Answer: 1. The nucleoli disappear
2. Chromatin fibers coil up to become discrete chromosomes.
3. Each chromosome consists of two identical sister chromatids,
joined at the centromere.
4. Microtubules grow out from the centrosomes, initiating formation
of the mitotic spindle.
◉ What happens during metaphase?
Answer: Chromosomes line up in the middle of the cell
◉ What happens during anaphase?
Answer: 1. The two centromeres of each chromosome come apart,
separating the sister chromatids.
2. The spindle fibers pull apart the chromatids to form two nucleus
of the cells.
◉ What happens during telophase?
, Answer: 1. nuclear envelopes form around the identical sets of
chromosomes at the two poles of the cell.
2. The chromosomes uncoil
3. Nucleoli appear in the two new nuclei.
◉ What happens during cytokinesis?
Answer: cytoplasm divides
◉ What is interphase?
Answer: the resting phase between successive mitotic divisions of a
cell, or between the first and second divisions of meiosis. (S, G2, G1)
◉ What is the mitotic spindle?
Answer: a structure made of microtubules that controls
chromosome movement during mitosis
◉ What are centrosomes?
Answer: microtubule organizing center
◉ How is cell division regulated?
Answer: by a molecular control system
SCIENCE QUESTIONS ANSWERS
COMPLETE A+
◉ What happens during prophase?
Answer: 1. The nucleoli disappear
2. Chromatin fibers coil up to become discrete chromosomes.
3. Each chromosome consists of two identical sister chromatids,
joined at the centromere.
4. Microtubules grow out from the centrosomes, initiating formation
of the mitotic spindle.
◉ What happens during metaphase?
Answer: Chromosomes line up in the middle of the cell
◉ What happens during anaphase?
Answer: 1. The two centromeres of each chromosome come apart,
separating the sister chromatids.
2. The spindle fibers pull apart the chromatids to form two nucleus
of the cells.
◉ What happens during telophase?
, Answer: 1. nuclear envelopes form around the identical sets of
chromosomes at the two poles of the cell.
2. The chromosomes uncoil
3. Nucleoli appear in the two new nuclei.
◉ What happens during cytokinesis?
Answer: cytoplasm divides
◉ What is interphase?
Answer: the resting phase between successive mitotic divisions of a
cell, or between the first and second divisions of meiosis. (S, G2, G1)
◉ What is the mitotic spindle?
Answer: a structure made of microtubules that controls
chromosome movement during mitosis
◉ What are centrosomes?
Answer: microtubule organizing center
◉ How is cell division regulated?
Answer: by a molecular control system
