2. OBJECTIVES
differentiate the techniques in genetic engineering, and
1.
2. apply it in real life situation.
At the end of the lesson, the students should be
able to:
4. For example, scientists may breed (cross pollinate, in
this case) only the highest yielding crops with one
another for many generations.
The result is a population of plants that all produce a
higher yield (e.g., abundant fruit production) than
other members of the species. Through selective
breeding, scientists are able to change the traits in
the population. Evolution has occurred.
5. Selective breeding makes use of existing,
naturally present gene variants in a species and
the natural process of breeding. Genetic
engineering involves a direct change to an
organism's genome in the laboratory. Gene
variants made through genetic engineering can be
passed from one generation to the next.
2.SELECTIVE
BREEDING
6. Hybridization, as related to genomics, is the
process in which two complementary single-
stranded DNA and/or RNA molecules bond
together to form a double-stranded molecule.
The bonding is dependent on the appropriate
base-pairing across the two single-stranded
molecules.
3.HYBRIDIZATION
8. Inbreeding is when the animals bred are very
close relatives, such as siblings. Continued
inbreeding results in offspring that are very
genetically alike. After many generations of
inbreeding, the offspring will be almost
genetically identical, and will produce identical
offspring.
4. INBREEDING
