K strategists typically produce large numbers of offspring. Indicate whether the statement is true or false
False - R-strategists
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In SDS–polyacrylamide gel electrophoresis proteins are partially denatured and separated entirely as a function of their mass
Histones are an exception; they migrate more slowly than they should, as though they are much larger than they actually are. Why does this occur? A. Histones form dimers and tetramers, making them appear larger. B. Histones are heavily glycosylated, greatly adding to their mass. C. Histones have a large number of positively charged amino acid residues. The binding of SDS to the histones is not sufficient to mask these charges, resulting in slower migration. D. Histones have an affinity for polyacrylamide. E. Histones are somewhat insoluble, which slows their passage through the gel.
The promoter of a gene is the part of a gene where RNA polymerase and transcription factors bind, marking the ________.
A) end point of transcription B) start point of transcription C) end point of translation D) start point of translation
Which of the following could be used as evidence for spontaneous generation?
A) Gauze-covered meat will not give rise to maggots. B) Shaking Pasteur's S-necked flasks did spoil the broth. C) Uncovered meat will give rise to maggots. D) The broth in Pasteur's S-necked flasks did not spoil. E) Flies lay eggs that develop into maggots.
The respiratory system is responsible for
A. oxygen entering the body and carbon dioxide leaving the body. B. the regulation of nutrient absorption. C. carbon dioxide entering the body and oxygen leaving the body. D. nitrogen leaving the bloodstream. E. methane formation.