Cell Cycle · Botany

Which proteins are major regulators of cell cycle progression?

  1. Cutin and suberin
  2. Cellulose and lignin
  3. Cyclins and cyclin-dependent kinases
  4. Chlorophyll a and chlorophyll b pigments
Show answer and explanation

Correct answer: Cyclins and cyclin-dependent kinases

Cyclins and cyclin-dependent kinases control transitions between phases of the cell cycle. Cyclin levels change during the cycle and activate specific kinases at the right time.

Difficulty: Medium Question 16 of 20

Practice all 20 Cell Cycle questions

Keep practicing

More Cell Cycle questions