Restriction Enzymes Have Proved So Useful in Manipulating DNA Because

question 48

Multiple Choice

Restriction enzymes have proved so useful in manipulating DNA because

• A)they cut at defined sites.
• B)the sticky ends make it very easy to allow recombination of any type of DNA.
• C)they protect eukaryotes against virus attack.
• D)they cut RNA molecules.
• E)they cut at defined sites AND the sticky ends make it very easy to allow recombination of any type of DNA.

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Definitions:

Hemostasis

Process by which blood clots in response to injury.

Homeostasis

Process in which organisms keep their internal conditions within tolerable ranges by sensing and responding appropriately to change.

Closed Circulatory System

Circulatory system in which blood flows through a continuous system of vessels, and substances are exchanged across the walls of the smallest vessels.

Capillaries

The smallest blood vessels in the body's circulatory system, where the exchange of water, oxygen, carbon dioxide, and many other nutrient and waste substances occurs.