Comments. 1  TRAINING: Huskies are stubborn an very smart they will only do things if they know they'll get something out of it, Samoyed are kind of the same but a tad bit easier. COMPANIONSHIP: Husky and Samoyed are about the same HONESTLY every dog is about the same in this category it all depends on how well you train them.
In 1908, Ellerman and Bang demonstrated that certain types of tumors (leukemia of chicken) were caused by viruses. In 1911 Peyton Rous discovered that non-cellular agents like viruses could spread solid tumors. This was termed Rous Sarcoma virus (RSV). Bacteriophages. The most important discovery was that of the Bacteriophage era. In 1915 Twort was working with vaccinia virus and found that the viruses grew in cultures of bacteria. He called then bacteriophage. Twort abandoned this work after World War I. In 1917, D'Herelle, a Canadian, also found similar bacteriophages. Images of viruses
In the Hershey and Chase experiment that helped confirm that DNA, not protein, was the hereditary material, the key finding was that _____. (p. 289) Scientists have discovered how to put together a bacteriophage with the protein coat of phage T2 and the DNA of phage T4. If this composite phage were allowed to infect a bacterium, the phages produced in the host cell would have _____. (p. 289) Chargaff found that for DNA _____.