1 Mouths are quiet 2 Begin the quick

1. Mouths are quiet. 2. Begin the quick review section of your notes. 3. Raise your hand if you need something.

Quick Review 1. How would a Deer be classified based on what it eats? Consumer and herbivore 2. How would a Deer Mouse be classified based on what it eats? Consumer and omnivore 3. In which trophic level(s) is/are a Blue Jay? Tertiary consumer

Quick Review 4. In which trophic level(s) is/are a Deer Mouse? Primary and secondary consumers 5. If this food web was turned into an energy pyramid, which organisms would be at the top? Blue Jay or Deer Tick

Location: College Station, Texas Size: 39, 148 students 24 – 30 average ACT Admitted: 69% 97% in-state

Mascot: Aggies Reveille Colors: Maroon and white 6 th largest school Aggie Ring Yell Leaders, the Twelfth Man and Midnight Yell “Gig ‘Em”

Johnny Football

Famous Scientist: Nathaniel Alexander 1911 Patented the folding chair which was designed to be used in schools, churches, and at large social gatherings.

Ecosystems and Adaptations Lesson 6. 12 – Biotechnology

I can define and recognize examples of selective breeding and genetic engineering. (3 f) 1. The changing of living things by humans to make useful products = biotechnology 2. The intentional mating of certain organisms to produce offspring with specific traits = selective breeding a. Many food products we have today (corn, wheat, etc. ) are the result of selective breeding over thousands of years.

I can define and recognize examples of selective breeding and genetic engineering. (3 f) b. This process is called mass selection. Organisms with desired traits are bred. Offspring with the desired traits are then bred and those without are not bred. This is repeated over many generations until all offspring have the desired traits. This process is very slow.

I can define and recognize examples of selective breeding and genetic engineering. (3 f) 3. Changing the genes of an organism to give new traits = genetic engineering a. Gene splicing is a common form of genetic engineering. The gene from one organism for a desired trait is put in the DNA of another organism.

I can define and recognize examples of selective breeding and genetic engineering. (3 f) b. Often times, the DNA from a complex organism, like a human, is transferred to a more simple one like bacteria.

I can define and recognize examples of selective breeding and genetic engineering. (3 f) c. The DNA of a bacterium is circular and called a plasmid. Scientists will cut the plasmid and insert a new gene. Each time the bacterium reproduces, its offspring will have the new gene and will produce the desired trait.

I can define and recognize examples of selective breeding and genetic engineering. (3 f) d. In order to genetically engineer organisms, scientists need to know lots of information about their DNA. It is now possible to determine every nucleotide in an organism’s DNA, this is called its genome. They must also determine all of the organism’s genes and what traits these genes control.

Guided Practice WORK WITH US…NOT AHEAD OF US!

I can define and recognize examples of selective breeding and genetic engineering. (3 f) 1. Dr. Jay Keasling is changing the genes of bacteria to produces what two products? Artemisinin and diesel fuel 2. What process is Dr. Keasling using to change these bacteria? Genetic engineering 3. Dr. Karen Nelson is working to determine the sequence of nucleotides in many different organisms. What is Dr. Nelson creating? Genomes 4. Dr. Robert Fraley is using genetic engineering to make plants resistant to droughts.

I-N-D-E-P-E-N-D-E-N-T PRACTICE Do you know what that means?

Exit Ticket (5 Questions)

1. Which of these is an example of genetic engineering? A. Use of herbicides B. Cross breeding C. Heart surgery D. Gene splicing

2. Which of these is an example of biotechnology? A. A chicken coop B. A potato that resists frost C. A microscope D. A laboratory

3. A genome is A. a pattern of bands formed by DNA fragments. B. a gene inserted into bacterial chromosomes. C. the complete set of genes in an organism. D. part of a chromosome.

4. Which best describes how selective breeding by mass selection changes the traits of organism? A. Small differences in traits accumulate in successive generations over time, resulting in organisms that have desired traits. B. Large differences in traits appear immediately and are passed to successive generations. C. Large differences in traits appear immediately and are passed on to all offspring. D. Small differences in traits appear only if DNA is not copied correctly.

Fill in the following blanks using the given terms. 5. A genetic engineer inserts a gene from a complex organism into a , a piece of DNA. This is then inserted into which will reproduce. Their offspring will all produce the desired. A. bacteria B. plasmid C. circular D. protein