Download Sexual vs. Asexual Reproduction

Sexual vs. Asexual
Reproduction
What’s the difference???
Asexual Reproduction
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Asexual Reproduction: 1 cell becomes 2
(Mitosis) Movie
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
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Page 310
Budding
Fragmentation
Regeneration
Page 190
Plantlets
Tubers
Runners
WHICH TYPE OF ASEXUAL
REPRODUCTION?
Get Ready! Set! Go!
KALANCHOE
POTATO
STRAWBERRY PLANT
Types Of Asexual Reproduction
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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.
WHICH TYPE OF ASEXUAL
REPRODUCTION?
Get Ready! Set! Go!
HYDRA
NEWT
STARFISH
Types Of Asexual Reproduction
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Budding – parent organism pinches off and forms new
organism Movie
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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.
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Advantages and Disadvantages of
Asexual Reproduction

PROS

CONS
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Don’t need to find
mate
Can stay in one place
Less energy expended
Can produce a bigger
population more quickly
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No genetic variation
Population of clones
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Sexual Reproduction

Sexual Reproduction: 2 cells become 1
(Meiosis)
Advantages and Disadvantages of
Sexual Reproduction

PROS

CONS

Genetic variation can
lead to new traits,
better survival and aid
evolution

Requires more energy
to find mate and
process usually takes
longer
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Slower population
growth
Asexual Reproduction
Sexual Reproduction
-Only one parent
-Offspring are genetic
clones of parents
-Requires two different
parents
Method of
reproduction
-Specialized sex cells,
made by MEIOSIS
-No genetic variation!
-Lots of genetic variation,
good for evolution
-In some organisms, it is
as simple as MITOSIS
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…
SEXUAL OR ASEXUAL??
It’s GO Time…
HYDRA
ELEPHANT
FLAT WORM
FLOWER
STRAWBERRY RUNNER
NEMO
PLANTLET
FROG
PLANARIA
POTATOES
CHICKEN
STARFISH