Which of the following globular proteins is used to form filaments as an intermediate step to assembly into hollow tubes?
(a) tubulin
(b) actin
(c) keratin
(d) collagen
Answer: A
Which of the following globular proteins is used to form filaments as an intermediate step to assembly into hollow tubes?
(a) tubulin
(b) actin
(c) keratin
(d) collagen
Answer: A