Genetic Engineering

Содержание

1. Genetic Engineering
2. Genetic engineering: Changing the DNA in living
3. Some genetic engineering techniques are as follows:
4. 1. artificial selection: breeders choose which
5. A. Selective breeding: when animals with desired
6. For example people breed dogs for specific
7. Selective breeding occurs when you choose the
8. Examples of selective breeding:Angus cows are bred
9. B. Hybridizations: two individuals with unlike characteristics
10. Other Examples of hybridization:Liger: lion and tiger mix
11. 2. Grape + apple= grapple. The fruit tastes like grapes and looks like apple.
12. C. Inbreeding breeding of organism that genetically
13. 2. Cloning: creating an organism that is
14. How is cloning done?A single cell is
15. Dolly:Dolly was the first mammal cloned.She had
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Genetic engineering: Changing the DNA in living organisms to create something new. This organisms are called Genetically Modified Organism (GMO)Example: Bacteria that produce human insulinGenetically Modified organism are called transgenic organism;

Слайды и текст этой презентации

Слайд 1Genetic Engineering

Слайд 2Genetic engineering: Changing the DNA in living organisms to create

something new.

This organisms are called Genetically Modified Organism (GMO)

Example:

Bacteria that produce human insulin

Genetically Modified organism are called transgenic organism; since genes are transferred from one organism to another.

Genetic engineering: Changing the DNA in living organisms to create something new. This organisms are called Genetically

Слайд 3Some genetic engineering techniques are as follows:
1. Artificial selection
A.

selective breeding
B. hybridization
C. inbreeding

2. Cloning
3. Gene splicing
4. Gel electrophoresis: analyzing

DNA

Some genetic engineering techniques are as follows: 1. Artificial selection A. selective breeding B. hybridization C. inbreeding2. Cloning3. Gene splicing4.

Слайд 41. artificial selection: breeders choose which organism to mate

to produce offspring with desired traits.

They cannot control what genes

are passed.
When they get offspring with the desired traits, the maintain them.

Three types of artificial selection:
A. selective breeding
B. hybridization
C. inbreeding

1. artificial selection: breeders choose which organism to mate to produce offspring with desired traits.They cannot

Слайд 5A. Selective breeding: when animals with desired characteristics are mated

to produce offspring with those desired traits.
Passing of important genes

to next generation.
Example: Champion race horses, cows with tender meat, large juicy oranges on a tree.

A. Selective breeding: when animals with desired characteristics are mated to produce offspring with those desired traits.Passing

Слайд 6For example people breed dogs for specific purposes.
Dachshund were once

bred to hunt badgers and other burrowing animals.
They

must be small to fit into the animals hole in the ground.

For example people breed dogs for specific purposes.Dachshund were once bred to hunt badgers and other burrowing

Слайд 7Selective breeding occurs when you choose the best male and

female to breed.
This allows you to fine tune and

control the traits
The offspring or babies will then have the best traits.
Then you continue to breed those organism with the best traits, those traits will be maintained.

Selective breeding occurs when you choose the best male and female to breed. This allows you to

Слайд 8Examples of selective breeding:

Angus cows are bred to increase muscle

mass so that we get more meat,

Egg-Laying Hen-produces more

eggs than the average hen

Examples of selective breeding:Angus cows are bred to increase muscle mass so that we get more meat,

Слайд 9B. Hybridizations: two individuals with unlike characteristics are crossed to

produce the best in both organisms.
Example: Luther Burbank created

a disease resistant potato called the Burbank potato.
He crossed a disease resistant plant with one that had a large food producing capacity.
Result: disease resistant plant that makes a lot of potatoes.

B. Hybridizations: two individuals with unlike characteristics are crossed to produce the best in both organisms. Example:

Слайд 10Other Examples of hybridization:
Liger: lion and tiger mix

Слайд 112. Grape + apple= grapple. The fruit tastes like grapes

and looks like apple.

Слайд 12C. Inbreeding breeding of organism that genetically similar to maintain

desired traits.
Dogs breeds are kept pure this way.
Its how a

Doberman remains a Doberman.
It keeps each breed unique from others.
Risk: since both have the same genes, the chance that a baby will get a recessive genetic disorder is high.
Risks: blindness, joint deformities.

C. Inbreeding breeding of organism that genetically similar to maintain desired traits.Dogs breeds are kept pure this

Слайд 132. Cloning: creating an organism that is an exact genetic

copy of another.
Clone: group of cells or
organisms that

are genetically
identical as a result of asexual
reproduction
They will have the same exact
DNA as the parent.

2. Cloning: creating an organism that is an exact genetic copy of another. Clone: group of cells

Слайд 14How is cloning done?
A single cell is removed from a

parent organism.
An entire individual is grown from that cell.

Remember one cell has all the DNA needed to make an entire organism.
Each cell in the body has the same DNA, but cells vary because different genes are turned on in each cell.