The monomers that make up proteins are ________.
a) disaccharides
b) amino acids
c) chaperones
d) nucleotides
Ans: b) amino acids
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Two modular elements that appear as consensus sequences upstream from RNA polymerase II transcription start sites are ________
A) rDNA and nucleolar organizers B) TTAA and CCTT C) TATA and CAAT D) microsatellites and transposons E) enhancers and telomeres
An individual receives a flu vaccine and is well protected for the current flu season. The following flu season, the individual fails to get another flu vaccine and comes down with the flu
What is the most likely explanation for vaccine ineffectiveness in the subsequent flu season? A) Antibiotic-resistant bacteria were able to overcome the effects of the vaccine. B) The immune system becomes weaker when continually exposed to the same virus contained in the vaccine. C) The flu virus mutated, leading to a new strain of virus that could escape detection by the immune system. D) Most vaccines have a limited lifetime and eventually break down and become ineffective.
Humans are highly cooperative only because, as suggested by kin selection, cooperation increases the chance of similar genes being passed on through kin.
a. true b. false
The first true vaccine provided immunity to
A) anthrax. B) cholera. C) pertussis. D) rabies. E) smallpox.