Selective Breeding/Cloning/Genetic Engineering

Selective breeding:

• This is when humans select different ________ to breed, so their ________ have the desired ___________. This works with _______ and ________. 
• Downside: It takes a long time to see the characteristics ___________.

Genetic Engineering:

• This is changing genes without _________ at all. 
• Genes can be __________ to make Genetically __________ Organisms. 
• Use enzymes to _______ the wanted gene and ______ it into another organism's DNA.
• For example: a human insulin gene can be taken and put into a ________; then produce human insulin that can be used for __________.
• Cells can be modified ___________ by genetically engineering the original cells. 

What is it called when a person's genes are changed in order to treat a disorder?

The cells can also be modified ___________.

 Cloning: 

• There are ______ clones. A prime example are Strawberry plants which have _________.

• Dolly the Sheep:

Nucleus is removed from egg                                                                                                     Nucleus from body cell into carrier cell                                                                                     Electric shock stimulates mitosis                                                                                                 Implant embryo into surrogate                                                                                                           The baby is an identical copy of the original

Disadvantage: If whole flock were identical and suseptibal to a disease, they could all die out.

Advantage: They all have desired characteristics.