1. Cloning
WALT: To understand how organisms are cloned and to
consider the ethical issues behind this.
WILF:
~ Recall that cloning involves asexual reproduction. (E/D)
~ Describe how plant cuttings can be cloned. (C)
~ Discuss the advantages, disadvantages and possible
problems with cloning mammals. (B)
~ Explain the process of how mammals can be cloned. (B)
~ Explain with reference to mitosis why clones are
genetically identical. (A/A*)
Keywords
asexual reproduction clone implanted
enucleated

2. How do you clone plants?
Asexual reproduction.

3. How do you clone a mammal?

4. Cloning mammals
Dolly the sheep was the
first large mammal to be
produced in 1996.
However it
did take 237
cloning
attempts and
Dolly died
relatively
young in
2003.
CopyCat is the only
surviving clone
following 87
attempts.

5. Your task…
…is to produce a poster
showing the arguments
for and against cloning.
Checklist
~ a definition of cloning
~ how plants can be
cloned?
~ advantages and
disadvantages of
cloning mammals
~ your opinion on
cloning

6. Describe the stages involved in cloning a
mammal. (3m)
~ Nucleus from cell of wanted clone is
transferred into enucleated egg cell.
~ The egg cell is the stimulated to start
mitosis
~ Embryo grows and is placed into the
uterus of a surrogate mother