This document discusses asexual and sexual reproduction. It defines asexual reproduction as reproduction by a single parent that results in offspring identical to the parent. Advantages are the offspring receive all good traits, but also all bad traits, limiting adaptation. Types of asexual reproduction include binary fission, budding, vegetative propagation, sporulation, and regeneration. Sexual reproduction involves two parents and results in offspring that are a unique combination of both parents, allowing for more diversity and adaptation. However, traits needed for survival are not always passed on. Types of sexual reproduction in plants and animals are also outlined.

1. Do Now
Yellow post-it: Asexual
Reproduction
Blue post-it: Sexual Reproduction
(Write down one fact that you
know about both and stick it up on
board with your name on it.)

2. Asexual
&
Sexual
Reproduction

3. Asexual Reproduction
 Type of reproduction in which a
new organism is produced from
ONE parent and the offspring is
identical to the parent.
 Occurs in most plants, bacteria,
protists, and low invertebrates.

4. Asexual Reproduction
 One parent
 Offspring
are identical
to the parents.
One Parent
Identical
Offspring

5. Hmmm….
What are some advantages
and disadvantages of asexual
reproduction?

6. Asexual Reproduction
 Advantages and Disadvantages of
Asexual Reproduction
 Advantages – Identical to parent, so
will get all good characteristics.
 Disadvantages – Identical to parent,
so will also get bad characteristics
and is less able to adapt to the
environment.

7.  Asexual reproduction occurs with Mitosis

8. Asexual Reproduction
 Types of Asexual Reproduction
 Binary Fission – used by
bacteria, an organism
whose cells do not
contain a nucleus copy
then divide into two
identical organisms
 Example: bacteria

10. Binary Fission

12. Asexual Reproduction
 Types of Asexual Reproduction
 Budding – organism that produces a bud
that breaks away to live on its own.
 Example: hydra

15. Budding in hydra
Budding in yeast

16. Asexual Reproduction
 Types of Asexual Reproduction
 Vegetative Propagation – results in a new
plant that is genetically identical to the
parent plant (a clone).
 Examples: strawberry plant, vegetables,
and crops.

20. Asexual Reproduction
Types of Asexual Reproduction
Sporulation – organism forms spores as a
means of asexual reproduction
Examples: bread mold, mushrooms

23. How mold affects your body

24. Mushroom Sporulation

25. Asexual Reproduction
 Types of Asexual Reproduction
 Regeneration – organism uses cell
division to re-grow body parts.
 Example: starfish, salamander

28. Salamanders: Salamanders can regenerate legs. When a salamander is in the
larval stage, it can regenerate a limb in thirty to forty days! Adult salamanders
can also regenerate limbs, but it takes much longer and the leg is not as large
as the original one.

29. Lizards: Lizards have the ability to replace lost limbs or a
lost tail. This is important because when a predator such as
a hawk captures the tail, the lizard can escape. The new
tail lacks the backbone of the original tail.

30. Crayfish: Cray fish can regrow claws, pinchers, or legs. It
is easy to recognize the regenerated part because it is
smaller than the other parts. Just like the lizard, it can
break off a claw or leg so that it can escape when captured
by a predator.

31. Fun Fact: The liver is the
only organ in the body that
is able to regenerate.

33. Sexual Reproduction
 Two parents
 Offspring are
a combination
of both parents
and are
therefore different
from each parent.
unique / diverse offspring
Two
Parents

34. Hmmm…
What are some advantages and
disadvantages of sexual
reproduction?

35. Sexual Reproduction
 Advantages and Disadvantages of
Asexual Reproduction
 Advantages – variety and/or diversity
of offspring (color, shape, size,
intelligence, ability, etc.), More able to
adapt to environmental changes.
 Disadvantages – uniqueness,
sometimes traits needed for survival
are not passed on.

36. Sexual Reproduction
 Types of Sexual Reproduction
 Plants – when the reproductive cells
of one plant fertilize
(pollinate) the
reproductive cells
of another plant. This produces
seeds that can grow
into a new plant.

37. Sexual Reproduction in plants

38. Sexual Reproduction
 Types of Sexual Reproduction.
 Animals – when the reproductive
cells of one
animal fertilize
the reproductive cells of another
animal. This
produces a
baby (embryo).

39. Sexual Reporduction in animals

40. Think about something you learned
today that was so interesting that you
need to share it with your friends!
Tweet it, Instagram it, or make it a
Facebook status (with name on it)!
When you are done, come stick it up on the
board.
If you have a twitter account, you may take
out your phone and tweet it!