Sexual vs. Asexual Reproduction What’s the difference???
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Transcript of Sexual vs. Asexual Reproduction What’s the difference???
Your Job◼Find out the 6 ways that organisms can
reproduce ASEXUALLY.◼Use textbook pages 190 (Other Methods
of Reproduction) for plant species and page 310 (Asexual Reproduction) for animal organisms.
◼Take notes in ENB.◼You will be quizzed on this information in
15 minutes!!
Types of Asexual Reproduction
Page 310 Budding Fragmentation Regeneration Page 190 Plantlets Tubers Runners
Types Of Asexual Reproduction Plantlets – tiny plants grow along the edges
of plants leaves and falls off and grow on their own.
Tubers – underground stems or tubers can produce new plants after a dormant season.
Runners – above ground stems from which new plants can grow.
Types Of Asexual Reproduction Budding – parent organism pinches off and forms new
organism Movie
Fragmentation – part of organism break off and develop a new individual that is identical.
Regeneration – organism loses a body part develop into an entirely new organism.
Advantages and Disadvantages of Asexual Reproduction
PROS
Don’t need to find mate Can stay in one place Less energy expended Can produce a bigger
population more quickly
CONS
No genetic variation Population of clones
Advantages and Disadvantages of Sexual Reproduction
PROS
Genetic variation can lead to new traits, better survival and aid evolution
CONS
Requires more energy to find mate and process usually takes longer
Slower population growth
Asexual Reproduction Sexual Reproduction
Method of
reproduction
-Only one parent
-Offspring are genetic clones of parents
-No genetic variation!
-In some organisms, it is as simple as MITOSIS
-Requires two different parents
-Specialized sex cells, made by MEIOSIS
-Lots of genetic variation, good for evolution
Quick Review✦ We grow because cells reproduce
✦ Sexual Reproduction turns two cells into one
✦ Asexual Reproduction turns one cell into two
✦ Turn to page 88 and 89 in textbook
✦ Look at the first and last pictures of the diagram
✦ Is this sexual or asexual? How do you know?
Apply What you Know…
Write two paragraphs with at least 6 sentences each describing asexual and sexual reproduction.
Paragraph 1: Asexual reproduction is…..Paragraph 2: Sexual reproduction is…