cloning - #scichallenge2017
TRANSCRIPT
CLONING :
IS IT A WAY TO THE PARADISE OR TO THE HELL ?
#SCICHALLENGE2017VOLEJNÍK ONDŘEJ
What is cloning?
Embryo cloning
Known as therapeutic cloning
Goal: stem cells to medical purpose
Cloning the organism:
Creating a copy of the existed organism
Eg. Asexual reproduction - so common in plants
DNA cloning :
When DNA is extracted from an organism, all its genes are obtained
In gene cloning, a particular gene (=sequence of DNA) is copied (=cloned)
Cloning DNA
• Step 1 :
• The chosen piece of DNA is
"cut" using restriction enzymes
• Step 2:
• It is pasted into a vector by
ligation (=linking two parts of
DNA to create typical double
helix)
• Step 3:
• Vector is introduced into a host
cell
• Step 4:
• The vector DNA is isolated and
purified
Why Dolly, the sheep is extraordinary?
Dolly
Born: 5 July 1996
Spent her life in Edinburgh
Gave birth to 6 lambs
The fisrt mammal cloned from an adult somatic cell using SCNT
3 mothers :
One provided the egg
Second another DNA i.e. genetic information
Third carried the cloned embryo
SCNT
=somatic cell nuclear tranfer (also called nuclear tranfer)
Somatic cell= two types of reproductive cells
Nuclear= adjective desinging the nucleus of a cell
Transfer= moving an object from one place to another
The principle of SCNT
Embryo cloning :
the last one
We have
passed the definition section! ...
… and now, more entertaining part
Do you know in which fields the
cloning is used?
Just DISCOVER it!
Agriculture
Genetic modified organism (GMO)
Advantages:
Increasing of crop yield
Resistance to pest
More food for starving people
Famine 2017
At least, those
people could be
saved from
starving
Forensic science and
archaeogenetics
Creating a sufficient sample for analysing its DNA
-> we can find out who has committed a crime
-> it helps us to determine the origins of human (Homo sapiens)
Medicine
Cloning animal models of disease
Cloning to make stem cells
New organs
Cure genetic diseases (cystic fibrosis, etc.)
In 2013 : at Oregon Health and Science University, first to creating human
embrionic stem cells
Other uses
Reviving endangered or extinct species
Reproducing a deceased pet
Drug production
Cloning human?
Cloning livestock
Today: possibility to create a lab burger
Tomorrow: cloning agricultural animals to feed people
Possible disadvantages
Lack of information about the impact on health
Danger of misusing
Creating of army
Creating "better" humans
Not ethical
So is the cloning the answer for a
better world?
Definitely YES
if we don't misuse it.
Thank you for reading