Wake-up1. Explain the term genetic engineering.

2. What is the purpose of restriction enzymes? Think about the activity.

3. You’ve found out that the child you (or your wife) carries has the gene for dwarfism. A new therapy exists that may repair this gene before the child is born. What do you do? Explain.

a. Allow the child to be born with the gene; we will accept the child as it is.

b. Attempt the new therapy to repair the gene

Wake-up1. What process is responsible for

creating the gel below?2. Who is guilty? Explain how you know.3. Which fragments will be at the bottom

of a gel: large or small fragments?

Wake-up

1. Explain what the term Evolution means?

2. Provide an example of evolution.

Wake-up

1. Explain the difference between adult stem cells and embryonic stem cells.

2. Why are stem cells so controversial?

History of Evolutionary Thought

Christopherson

Write down two to three “things” that pop in your mind when you hear the word:

Evolution

Pre-Darwinian Thought

All organisms are perfect. They will remain unchanged throughout their lives.

George Cuvier (1782-1832)Paleontologist

Noticed in digging for fossils that there were several layers/levels of Earth.

In each level, found organisms that resemble organisms alive

today.

As he got deeper similarities started to fade.

Relative Dating

Deep = Old

Toward the surface = Younger

Theory of Catastrophism

Each level represents a time of a

catastrophe.

The fossils that he found are organisms that got wiped out by

catastrophe.

Organisms that are living, survived.

Jean Baptiste LamarckCurator at a science

museum in Paris

Compared the living organisms to the fossil

collection

Found similarities which led him to

believe they might have a similar

ancestor

Theory of Use and Disuse: The parts of the body that an organism uses to survive will

become developed and strong.

If not used will disappear.

Inheritance of Acquired Characteristics

:

Any trait an organism acquires in its life will be

passed on to its offspring.

Wake-up

1. Explain Lamarck’s theories by creating your own example. Remember, he created his theories by analyzing the different neck lengths in giraffes.

2. What is the Theory of Catastrophism state?

Developed ways to travel to

other countries across the

ocean

Found new areas with organisms

NEVER seen before.

Charles Darwin

Father of Evolution.

LOVED nature

Medicine

Studied Theology; LOVED science

Age of 22: Became a naturalist aboard the HMS

Beagle

Saddleback Tortoise

Domed Tortoise

Galapagos Islands

Thomas Maithus

“The human population grows faster than the Earth.

As a result of this large population, we experience

death, starvation, and competition”

Theory of Natural SelectionSurvival of the “Fittest”: The best adapted

individual will survive and pass on their traits to their offspring