Answer:
True
Explanation:
During the late 1950s and early 1960s, Werner Arber and several others extended the work of an earlier Nobel laureate, Salvador Luria, who observed that bacteriophages (viruses that infect bacteria) not only induce hereditary mutations in their bacterial hosts but at the same time undergo hereditary mutations themselves. Werner Arber’s research was concentrated on the action of protective enzymes present in the bacteria, which modify the DNA of the infecting virus e.g., the restriction enzyme, so-called for its ability to restrict the growth of the bacteriophage by cutting the molecule of its DNA to pieces.
Answer:
The mother ditch, or main ditch or canal, leads water to the headgates, which control the main flow. Lateral ditches run perpendicular to the main ditch and bring water to the fields for field irrigation. A drain canal brings water back to the stream.
Explanation:
Answer:
I looked it up for you. All you have to do is put it in your own words. Hope this helps.!! :)
Explanation:
In many respects, cotton's financial and political influence in the 19th century can be compared to that of the oil industry in the early 21st century. ... After Britain had officially declared its neutrality in the American war in May 1861, the president ... the “cotton famine” and the crippling of the British textile industry until late 1862.
Jefferson's most fundamental political belief was an "absolute acquiescence in the decisions of the majority." Stemming from his deep optimism in human reason, Jefferson believed that the will of the people, expressed through elections, provided the most appropriate guidance for directing the republic's course.
Hope that helps!!
