IS IT SELECTIVE BREEDING OR GENETIC ENGINEERING?

A horse trainer wants to make more money and has his winning male horse, who has long legs to win races, mate with female horses.  The hope is the offspring will get the long legs so that the trainer can sell the horse to an owner, who will want to win a big horse race one day. 

A biologist at an agriculture laboratory is asked to develop a better quality blueberry plant.  He is given plant that produce unusually large blueberries and plant that produce very sweet blueberries.

If a person takes the gene from one dog and places it inside the body of another dog, this is an example of

All dogs are related to the gray wolf. How did humans create different dog breeds from one common ancestor?

Giraffe necks became longer as their food source got taller over time through:

Farmers take two fattest pigs and mate them

A scientist takes DNA from a species of tomato that has the best flavor and adds it to the DNA of a tomato that grows fast:

Whale lost their legs and moved to swimming as their environment became covered with water.

Scientists attempted to change the population of fish living in a lake.  Fish that were “culled” were fished out and eaten.  Those that were “saved” were released back into the lake to reproduce. 

I think humans have been using __________

 for longer.