cell cycle

• the 3 main stages of the cell cycle are?

  • interphase(G1, S, G2)
  • nuclear division(M)
  • cell division(cytokinesis)
• which stage is the longest stage:

  interphase is the longest stage of the cell cycle of extremely variable length
• why is interphase the longest stage

  during G1 and G2 phase, the cell grows by producing proteins and organelles for the new cell

  during S phase, the cell prepares for nuclear division by undergoing DNA replication
• what is the function of the nuclear envelope

  the nuclear envelope separates the content of the nucleus from the rest of the cytoplasm
• what is the difference between chromosomes and chromatin

  chromatin: long thread-like structure found within the nucleus

  chromosome: condensed form of chromatin, formed during prophase of nuclear division

  chromosomes are returned into chromatin during cytokinesis of the cell at the end of nuclear division