Organisms that are well understood from a scientific standpoint and are often used in basic biological research are often called ________
Fill in the blank(s) with correct word
model organisms
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Cloned genes may be mutated outside of a cell by a process called in vitro site-directed mutagenesis
Indicate whether the statement is true or false
A pathogenic virus has a new mutation in one of the coat proteins, that just happens to resemble the structure of a normal human protein present in glial cells of the CNS. What do you predict may be an outcome of infection by this virus?
A. The initial response to the virus will be strong, but will then be shut down by immunological tolerance. B. An autoimmune disease of the brain may develop. C. The innate immune system will ignore the pathogen, but the acquired immune system will attack it. D. The membrane attack complex will be unable to burst the viral membrane.
Which of these is a community?
A) all of the Staphylococcus aureus (a species of bacteria living on your skin B) all of the organisms living in your home C) all of the people living in your neighborhood D) all of the nut grass (considered a weed) in your backyard
Psychrotrophs can survive refrigeration and are sometimes the cause of food spoilage and foodborne illness. The range in which they can live is: (Give your answer in this format which is not the correct answer: 15C-120C)
A) 0C-35C B) 0C-20C C) 15C-35C D) 10C-55C