Lesson 3.3

Both sexual and asexual reproduction involve cell division

Asexual reproduction involves one parent

  • ______reproduction: one organism produces one or more new organisms that are identical to itself and live independently of it
  • ______organisms
  • The organism that produces the new organism is the parent and each new organism is the ______
  • The offspring produced is ______identical to the parent

Cell Division in Unicellular Organisms

  • ______: parent organism splits into two, producing two completely independent daughter cells; happens in ______

Budding

  • Both unicellular and multicellular organisms
  • An organism develops tiny ______on its body
  • The bud has the same ______material as the parent
  • The bud grows until it forms a complete or nearly complete new organism that is genetically identical to the parent
  • Most often, when a bud reaches a certain size, it breaks free from the parent and becomes a separate, independent organism
  • ______and single-celled organisms
  • ______organisms: Hydra & the kalanchoe plant

Regeneration

  • The process of new tissue ______at the site of a wound or lost limb
  • If a ______is cut in half, each half can regenerate its missing body parts from its own cells. Result: Two complete, independent, and genetically identical ______
  • The growth of plants from ______; the ______will grow into a new independent plant that is genetically identical to the plant from which the ______was taken

Asexual Reproduction and Health

  • Bacteria reproduce through ______; it increases geometrically (2 to 4 to 8 to 16 and so on)
  • Generation time for bacteria is very ______
  • Some types of bacteria can produce a new generation of cells in less than ______minutes; in about an ______the number of bacteria can increase to four times the starting number

Comparing Asexual and Sexual Reproduction

Asexual / Sexual

Plants:

  • If you grow a plant from a cutting, the new plant will be ______to the parent
  • Plants that grow from a ______contain genetic material from two parents.
  • Divide your paper and draw a detailed picture of each of the 3 types of Asexual reproduction
  • Answer questions 1-6 on page 92