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Types of Reproduction Asexual Sexual
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Heredity Table of Contents
7.4.1 Notes Asexual Reproduction Tree Map
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SPI 7.4.1—Classify methods of reproduction as sexual or asexual
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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.
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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. (The offspring will be genetically the same as the parent)
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Types of Asexual Reproduction
Budding Regeneration or Fragmentation Fission (Binary fission) Spores Vegetative Propagation
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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.
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Hydra
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Cacti
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Regeneration or Fragmentation
The ability to restore lost or damaged tissues, organs or limbs. It is a common feature in invertebrates, like worms and starfish.
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Starfish
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Planarians
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Fission Also called binary fission.
Becoming two by division of the complete organism. A type of cell division.
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Paramecium
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Bacteria
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Spores A reproductive cell capable of developing into a new individual without fusion with another reproductive cell Found in mold, fungi, and ferns
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Mold
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Puffball
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Ferns
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Vegetative Propagation
A process which doesn’t involve a seed to produce new plants. Examples: runners, bulbs, cuttings, grafting
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Bulbs
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Cuttings
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Grafting
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Runners
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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
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Flowering plants
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Seeds
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Eggs
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Fish eggs
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Frog eggs
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Baby hedgehogs
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Baby animals
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Human babies
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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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Sexual versus Asexual Reproduction
Type of Reproduction Advantages Disadvantages Sexual Diversity in offspring Offspring less likely to have mutations show up Requires a mate to reproduce Population increases are limited Asexual Can increase populations rapidly Does not require a mate for reproduction to take place Lack of diversity in offspring Because they reproduce offspring genetically identical to parents, the offspring inherit any mutations of the parent.
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Exit Slip Describe the difference between asexual and sexual reproduction.
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