Download Types of Asexual Reproduction

Types of Asexual Reproduction
2. BUDDING
yeast
When areas of some
y
multicellular organisms (ex.
hydra, sponge) undergo
repeated mitosis to form an
identical organism. Buds
sometimes detach to form a
separate organism. Offspring
y
=
.
Bud
Human
9
methods
assisted
Cutting
Cut
:
a
piece
Condition
2
Grafting
:
scion
is
of
of vegetable reproduction
plant
and
it
place
in
a
.
growing
.
removed
and
Attached
to
rootstock
83¥
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.se?swea
e%St
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roots
stock
scion
•
.
graft
DATE:
NAME:
CHAPTER 5
New Plants from Grafting
CLASS:
BLM 2-22
Copyright © 2007, McGraw-Hill Ryerson Limited, a subsidiary of the McGraw-Hill Companies. All rights reserved.
This page may be reproduced for classroom use by the purchaser of this book without the written permission of the publisher.
Types of Asexual Reproduction
5. SPORE FORMATION
Ex
)
mushroom
mold
When some bacteria, micro-organisms and
fungi can form spores - single cells that can
grow into a whole new organism. through
mitosis
.
Advantages & Disadvantages
=
Fast
to
=
form
a
large family
Big family
can
Compete for food
better
2
To
save
genetic
information
from
endangered
species
Human Assisted Cloning
µ
! 
purpose
:
D
To
mass
produce
Organism wl desirable
traits
.
.
Humans use all the asexual cloning methods in order
to produce desired results with organisms. This is done
in several ways.
Human Assisted Cloning
1
! 
Reproductive cloning - purpose is to produce a
genetic duplicate of an existing or dead
organism. Steps involved:
1
1. 
2. 
Remove nucleus from an egg cell from female
A mammary gland cell is removed from an adult
female
Electricity fuses mammary and egg cell
Fused cell begins dividing
Dividing embryo is inserted into surrogate mother
2
3. 
4. 
5. 
3
Human Assisted Cloning
1. 
2. 
3. 
4. 
5. 
Remove nucleus from an egg cell
A mammary gland cell is removed from an adult female
Electricity fuses mammary and egg cell
Fused cell begins dividing
Dividing embryo is inserted into surrogate mother
embryo
Once
is
insert
Fuse
large
to
Frutos 's
enough
surrogate
mother
.
eg )
Dolly
World
the
Cat
,
sheep
Human Assisted Cloning
! 2
Therapeutic cloning - purpose is to correct health
problems
! 
! 
! 
! 
Very important to therapeutic cloning are stem
cells - cells that can become different types of
cells
Stem cells can be used to replace cells
damaged from injuries or disease
Diabetes, spinal injuries, Parkinson’s disease are
only a few that can benefit from stem cell
therapy
Controversial because the best stem cells are
from embryos which are destroyed when
harvesting cells
Human Assisted Cloning
k
Fused
Give
birth
the
to
offspring
|^
Embryo
1
Organ
Embryonic
2
STEM CELL
µ
transplant
to
the
patient
DATE:
NAME:
CHAPTER 5
CLASS:
Comparing Reproductive and
Therapeutic Cloning
BLM 2-23
Goal • Use this page to compare the similarities and differences between reproductive and
therapeutic cloning.
What to Do
After reading pages 176–178 in the student book, construct a Venn diagram to compare
reproductive and therapeutic cloning.
•
DNA
is
an
make
TO
Offspring
extracted
Fused cell
w/
cell
-
embryo
an
.
Embryo
into
a
Is
.
inserted
surrogate
mother
.
.
an
No
Fused
grows
egg
nucleus
a
an
before
inserted
a
•
a
patent
Is
becomes
cell
stem cell
grown
desired
Organ is
to
.
embryonic
which
into
body
extracted from
Fused
•
cell
problem
is
DNA
fused
and
.
becomes
is
extracted
from mammary Gland
cell
of female
•
DNA
.
health
fix
To
the
into
Organ
.
transplanted
patient
.
Copyright © 2007, McGraw-Hill Ryerson Limited, a subsidiary of the McGraw-Hill Companies. All rights reserved.
This page may be reproduced for classroom use by the purchaser of this book without the written permission of the publisher.
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