What is unusual about the 5' cap found on almost all eukaryotic mRNAs?
A. The nucelotide added is a guanine methylated at N7 and the bond is created between the phosphate group on the guanine and the phosphate on the terminal nucleotide
B. The nucelotide added is a guanine methylated at N7 and the bond is a typical phosphodiester bond with the terminal nucleotide
C. The nucelotide added is anadenine methylated at N7 and the bond is created between the phosphate group on the guanine and the phosphate on the terminal nucleotide
D. The nucelotide added is an adenine methylated at N7 and the bond is typical phosphodiester bond with the terminal nucleotide
A
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In reverse vaccinology, researchers develop vaccines by
A) considering how rapidly pathogens divide in laboratory culture. B) culturing pathogens in laboratory glassware. C) consulting genome sequence to identify genes that encode hidden antigens that may be used as the basis for a vaccine. D) injecting human antigens into pathogen genomes.
Synaptic vesicles are synthesized in the nerve ________
Fill in the blank with correct word.
Humans rely on fossil fuels for much of our energy needs. The burning of fossil fuels adds carbon dioxide (CO2) to the carbon dioxide already in the atmosphere. How do plants help keep some of this extra carbon dioxide from accumulating in the atmosphere?
A) Plants store carbon dioxide in their tissues. B) Plants return carbon dioxide to the ground through their roots. C) Plants take in atmospheric carbon dioxide to produce food. D) Plants break down carbon dioxide into carbon and oxygen.
When comparing cell shapes, the presence of which observable structure in plants provided the structural support?
What will be an ideal response?