List the Four Fundamental Forces of Nature and Describe What

question 78

Essay

List the four fundamental forces of nature and describe what effect each force has on objects in the universe.

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Definitions:

Nucleic Acid Probe

A nucleic acid probe is a segment of DNA or RNA labeled with a radioactive or fluorescent marker used to detect the presence of complementary sequences in DNA or RNA samples by hybridization.

Western Blot

A technique in which proteins, previously separated by gel electrophoresis, are transferred to paper. A specific labeled antibody is generally used to mark the location of a particular protein. Compare with Southern blot and Northern blot.

Bt Crops

Genetically modified crops that express toxins from the bacterium Bacillus thuringiensis, which are lethal to certain insect pests.

Pesticide-Resistant

Refers to organisms that have developed the ability to survive exposure to pesticides that would normally be lethal.