Clones

Question 1

What is a clone?

Answer 1

A clone is an organism that has identical genes. Cloning is an example of asexual reproduction

Question 2

What is an advantage of cloning?

Answer 2

If the animal that is cloned has good features, all of its offspring will have the same good features

Question 3

What are the disadvantages of cloning?

Answer 3

• it is more difficult to clone a mammal than a plant. It may take many attempts before a healthy cloned mammal is born, each attempt costs more money
• Cloned mammals may suffer more health problems than usual, which may cause them to die early
• Any genetic defect in the parent will be passed onto off spring

Question 4

What is the first stage of cloning?

Answer 4

A nucleus is removed from an egg cell and another diploid nucleus is removed from an adult body cell and placed in the empty egg

Question 5

What is the second stage of cloning?

Answer 5

The egg cell is then stimulated with an electric pulse to start mitotic division. The cell divides and grows as an embryo

Question 6

What happens in the third stage of cloning?

Answer 6

The embryo is then placed into the uterus of a surrogate mother until it is ready to be born