Transcript Types of Reproduction

Types of Reproduction
Reproductive
System Basics
Two Types of Reproduction
Asexual:
A single parent
produces offspring
genetically identical
to itself.
BACTERIA
Identical
Offspring
Single-celled organisms.
Original parent
More uniform
offspring
Requires one
parent
REGENERATION occurs
when part of an organism
grows to form other
organisms that are often
still connected to the
original organism.
FRAGMENTATION occurs
when the body of the
parent breaks into distinct
pieces, each of which can
produce an offspring.
Planaria reproduce by
fragmentation and regeneration
Starfish reproduce by
fragmentation and regeneration
BUDDING occurs when a
small part of the parent's
body separates from the
rest and develops into a
new individual, eventually
becoming an independent
organism.
Yeast – a type of bacteria
that you use in bread.
Reproduce by budding.
Hydra – found in lakes and
ponds. Reproduce by budding.
BINARY FISSION occurs
when a cell simply grows
larger, copies its DNA in
genes and chromosomes,
and then forms a cell
membrane down the midsection of the cell to form 2
new 'daughter' cells.
Amoeba reproduces
by binary fission.
Bacteria reproduces
by binary fission.
Reproductive System Basics
Two Types of Reproduction
Sexual:
Offspring is produced by
combining the genetics of
two parents.
Multicellular organisms.
Requires two
parents
More genetic
variation
Asexual vs. Sexual Reproduction
Asexual
Reproduction
Sexual
Reproduction
Asexual vs. Sexual Reproduction
A single parent cell
produces offspring
that are exactly
like the parent.
The new
individual has
the exact same
traits as the
parent
Two parent cells
join together and
develop into a
new individual
Living things make
other living things
like themselves
Asexual
Reproduction
Sexual
Reproduction
All organisms must
reproduce in order
for their kind to
survive
Most single
celled
organisms
Strawberry
Plants;
amoebas; coral
Human
s
The new
individual
shares traits
from both
parents
Most
animal
s
Asexual or Sexual ?
Involves two
parents.
Asexual or Sexual ?
Creates
Genetically
Diverse
Offspring
Asexual or Sexual ?
Creates
Genetically
Identical Offspring
Asexual or Sexual ?
Ex: Animals
Asexual or Sexual ?
Single Celled
Organisms
Asexual or Sexual ?
Involves only
one parent.
Asexual or Sexual ?
Example:
Bacteria, Hydra
& a Starfish
Asexual or Sexual ?
Multicellular
Organisms
CLASSIFYING ORGANISMS
• Objective: Classify the
following illustrations as
either SEXUAL or ASEXUAL
organisms.
Title: Bacteria
Title: Fetus
Title:
Albino Spider & Alligator
ALBINO= lack of normal pigments in
the skin that give the organism it’s
natural color. It is a genetic abnormality.
Title: ANTRHRAX
Bacillus Anthrasis
Title: A Cat
Title: Hungry Lions
Title: Wrinkle-Face Bat
Title:
Budding Yeast Cells
Title: Starfish
(Regeneration of limb)
Title: Monkey
Title: Budding Hydra
Title: Aye-Aye
(From Madagascar)
Unique Characteristics= the Aye-Aye has long fingers that
tap on the tree branch only to spear it’s prey. It has big ears to detect
movement of its prey at night inside the tree.
Title: Sharks