1. in cell , during cell division only mitochondria have dna so it can multiply itself , but how the other orgenells divide.
2. what is inside microtubules.
3. what causes the cells to divide rapidly in cancer.
4. why chlorophyl
please answer my some questions :
2) A microtubule is a hollow cylinder about 24 nm in diameter.Microtubules are polymers of α- and β-tubulin dimers. The tubulin dimers join end to end in protofilaments. The protofilaments then bundle into hollow cylindrical filaments. Typically, the protofilaments arrange themselves in an imperfect helix.
Kindly post each query separately.