Transcript Asexual Reproduction

Asexual
Reproduction
What is Reproduction?

Reproduction is the process in which organisms
produce more of their own kind.

Asexual reproduction occurs when a new organism
is produced by one parent. The new organism will be
identical to the parent.

Sexual Reproduction requires two parents each
giving 23 chromosomes to the offspring.
Types of Asexual
Reproduction
 Parthenogenesis
 Fission
 Vegetative
Propagation
 Fragmentation
 Budding
Parthenogenesis

A female organism produces an egg that
develops into a new organism without being
fertilized.

Identical copy of parent.

Examples: insects, reptiles and fishes.
Example
Whiptail Lizards
Parthenogenesis

A female whiptail
lizard may produce
eggs that develop
into identical
versions of itself.
Fission

A single-celled organism divides into two
cells of the same size.

Each is identical to the other.

Examples: Bacteria, Paramecium, Amoeba
Example
Bacteria
Fission

A single-celled
organism that has
no nucleus or cell
wall and reproduces
by splitting in two.
Vegetative Propagation

New plants can be produced from sections of
parent plants that are cut off.

Identical copy of parent.

Examples: spider plants, willow trees
Example
Strawberries
Vegetative
Propagation

Strawberries
reproduce new
plants by the
division of cells
from runners or
roots.
Fragmentation

An organism breaks up into fragments.

Each of these fragments develops into an
identical copy of the original organism.

Examples: flatworm, planarian
Example
Planarians
Fragmentation

The body of the
parent breaks into
pieces, each of
which can produce
an offspring
Budding

A bud grows on the body of the parent.

Identical copy of its parent.

Sometimes the bud separates from the
parent and becomes independent.

Examples: hydra, yeast, sponge
Example
Hydra
Budding

Cell division forms a
bud that is an
identical copy of its
single parent that
separates from the
parent and becomes
independent.