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Types of Reproduction

Types of Reproduction. Asexual Sexual. Purpose of Reproduction. To make sure a species can continue. Definition: Reproduction is the process by which an organism produces others of its same kind. Asexual Reproduction.

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Types of Reproduction

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  1. Types of Reproduction Asexual Sexual

  2. Purpose of Reproduction • To make sure a species can continue. • Definition: Reproduction is the process by which an organism produces others of its same kind.

  3. Asexual Reproduction • A new organism (sometimes more than one) is produced from one organism. • The offspring will have hereditary material uniform with the hereditary material of the parent organism. This means they will be genetically alike.

  4. Types of Asexual Reproduction In Animals • Budding • Regeneration • Fragmentation • Fission (Binary fission) • In Plants • Plantlets (budding) • Tubers • Runners • Bulbs

  5. Budding • Process by which a new, duplicate plant or animal begins to form at the side of the parent and enlarges until an individual is created. • Very common in plants; plantlets

  6. http://www.waycross.edu/faculty/bmajdi/hydra%20budding.jpg

  7. http://judyepstein.com/images/DesertImages/Budding-Purple-LG.jpghttp://judyepstein.com/images/DesertImages/Budding-Purple-LG.jpg

  8. Regeneration • The ability to restore lost or damaged tissues, organs or limbs. • It is a common feature in invertebrates, like worms and starfish.

  9. http://www.vsf.cape.com/~jdale/science/starfishregenerating.jpghttp://www.vsf.cape.com/~jdale/science/starfishregenerating.jpg

  10. http://classes.design.ucla.edu/Spring05/152BC/projects/saito/ex3/planaria.jpghttp://classes.design.ucla.edu/Spring05/152BC/projects/saito/ex3/planaria.jpg

  11. Fragmentation • In this type of reproduction, the body of the parent breaks into distinct pieces, each of which can produce an offspring.

  12. Fission • Also called binary fission. • Becoming two by division of the complete organism. • A type of cell division.

  13. http://wappingersschools.org/RCK/staff/teacherhp/johnson/visualvocab/BinaryFissionParamecium.jpghttp://wappingersschools.org/RCK/staff/teacherhp/johnson/visualvocab/BinaryFissionParamecium.jpg

  14. http://coris.noaa.gov/glossary/binary_fission_186.jpg

  15. Tubers • The easiest thing to think of when you're trying to understand a tuber is the potato. • A tuber has leathery skin and lots of eyes - no basal plate. All of those eyes are the growing points where the plants will emerge. • Examples of tubers: Potatoes, sweet potatoes, dahlias

  16. Runners • A runner is a stem which grows along the ground rather than upwards.Roots grow down from the runners and these help the plant spread over a large area. • Example of plants that make runners are strawberries and bamboo

  17. Bulbs • Bulbs (which are referred to as "true bulbs") grow in layers, much like an onion. • At the very center of the bulb is a miniature version of the flower itself. • Helping the bulb to stay together is something called a basil plate, which is that round and flat hairy thing (those are the beginnings of roots) on the bottom of the bulb. • Bulbs reproduce by creating offsets. These little bulbs are attached to the larger bulb.

  18. Sexual Reproduction • Requires two sex cells – egg and sperm • The egg and sperm join to form an entirely new organism • Different from the parent organism

  19. IMPORTANT! • Asexual reproduction results in offspring that are genetically identical to the parent organism • Sexual reproduction results in offspring that are genetically different from the parent organisms

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