Applying Genetic Engineering

alarmduckΒιοτεχνολογία

12 Δεκ 2012 (πριν από 4 χρόνια και 11 μήνες)

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Genetic Engineering

How Scientists manipulate DNA in living cells to create organisms

which are useful.


Artificial Selection/
Selective Breeding
-

Humans take advantage of naturally occurring genetic
variation, to pass on wanted traits to the next
generation.


Creates obvious differences in a species
.


Examples:







Helps produce new varieties of plants for consumption.


Examples:







Hybridization vs. Inbreeding


Hybridization
-






Inbreeding
-







Increasing Vari
ation
-

By introducing mutations

breeders can increase the genetic variation in a population
. Mutations
are the ultimate source of biological diversity.







Applying Genetic Engineering

Genetic Modification (GM)

-

Could help lead to better less expensive, and
more nutritious food, and less
-
harmful
manufacturing.

Natural Selection
-

Occurs when more animals are born than can survive.

Hereditable Variation
-

Variation and Adaption

Variable Fitness among Individuals
-
Survival of the Fittest