, CLONING & BIOTECH
coming
beaut
Vegetative propagation
· Asexual reproduction in plants (natural
dowing
4) e .
Strawberry plants
.
g . They produce runners
(long stems) that grow sideways across the
ground . At points along the runner new shoots/ ,
roots grow , becoming new
genetically
identical strawberry plants. The new plant
cal be propegated from the ster , leaf bud
or root of the parent plant
.
Examples :
Involves
·
pereating organs which can store
food remain dormant also helps them to
longer through growing seasons).
-
survwe
daffodil bulbs-leaf bases store food Swell
,
·
buds form internally to grow in the next
Season
·
spider plants-form runners
·
marram grass-rhizomes are a specialised
horizontal sterk
running underground ,
swollen
with storedfood , buds Shoots form from this
ruizome + become new plants .
·
potato-base of the stur underground form a
tuber with stored food, buds develop on the
tuber
methods :
plants are cloned using ;
· A non-flowering stem
·
An oblique cut in the stem-between 2 leaf
·
Hormone roothing Powder nodes
(
&
Reduce leaves to 2 or 4
#
keep the cuting well watered
cover cutting with a plastic bag for a
S
·
few days
The base of the plant is submerged
ii this to
encourage the tissues in the
ster to
develop into new roots
.
Benefits Risks
·
No genetic >
- could lead to
variation disease
& except mutation) susceptibility
·
offspring Can't colonise
·
&
adapted to un new
No new
areas
alleles
·
environment
coming
beaut
Vegetative propagation
· Asexual reproduction in plants (natural
dowing
4) e .
Strawberry plants
.
g . They produce runners
(long stems) that grow sideways across the
ground . At points along the runner new shoots/ ,
roots grow , becoming new
genetically
identical strawberry plants. The new plant
cal be propegated from the ster , leaf bud
or root of the parent plant
.
Examples :
Involves
·
pereating organs which can store
food remain dormant also helps them to
longer through growing seasons).
-
survwe
daffodil bulbs-leaf bases store food Swell
,
·
buds form internally to grow in the next
Season
·
spider plants-form runners
·
marram grass-rhizomes are a specialised
horizontal sterk
running underground ,
swollen
with storedfood , buds Shoots form from this
ruizome + become new plants .
·
potato-base of the stur underground form a
tuber with stored food, buds develop on the
tuber
methods :
plants are cloned using ;
· A non-flowering stem
·
An oblique cut in the stem-between 2 leaf
·
Hormone roothing Powder nodes
(
&
Reduce leaves to 2 or 4
#
keep the cuting well watered
cover cutting with a plastic bag for a
S
·
few days
The base of the plant is submerged
ii this to
encourage the tissues in the
ster to
develop into new roots
.
Benefits Risks
·
No genetic >
- could lead to
variation disease
& except mutation) susceptibility
·
offspring Can't colonise
·
&
adapted to un new
No new
areas
alleles
·
environment
