B14.5-6 Animal Cloning

Question 1

Explain the steps of embryo splitting/ transplants

Answer 1

Embryo is collected
Embryo allows to divide and split apart
Embryo placed in surrogate mother
4 identical offspring are born

Question 2

What is the problem with embryo splitting ?

Answer 2

We cannot be certain that the offspring will have the characteristics that we want
This is due to us starting with sperm and an egg

Question 3

How can we overcome the problems of embryo splitting ?

Answer 3

Adult cell cloning

Question 4

Explain the steps of adult cell cloning

Answer 4

Nucleus removed from an extracted cell
Nucleus removed from a body cell is extracted
Nucleus placed in empty egg cell. Electric shock is used to stimulate division
Embryo placed in surrogate mother

Question 5

What are the pros of cloning

Answer 5

Can replicate ideal traits exactly as we are cloning an adult
Plant— cheap and easy to do
Preserving endangered species

Question 6

What are the cons of cloning

Answer 6

1 Reduces gene pool and genetic variation
2. Animal cloning—- expensive
3. Adult cell cloning- low success rate
4. Embryo splitting— offspring unknown until birth
5. Ethic morality and religious belief
6. Cuttings damage plant
7. Tissue culture- condition must be aseptic