In the Hershey-Chase experiments, the protein coat of the bacteriophage was labeled with the 32P radioisotope
Indicate whether the statement is true or false
FALSE
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Addition of a poly(
A) tail to an mRNA molecule ________. A) allows the mRNA to be recognized by ribosomes during translation B) allows mRNA molecules to be more stable in the cytoplasm C) results in removal of introns D) only occurs in bacteria E) is an important step in translation
The division of cytoplasm is accomplished during ____________.
A. prokaryotic fission B. interphase C. meiosis D. cytokinesis E. karyokinesis
It has been suggested that scientists should attempt to genetically engineer a plant to have black leaves so that it would perform photosynthesis more efficiently. What is the likely reason behind this idea?
A) Black plants would heat up faster and therefore all chemical reactions including photosynthesis would operate faster. B) A black plant would reflect all wavelengths and therefore have more energy to drive photosynthesis. C) A black plant would absorb all wavelengths and therefore absorb more light energy that powers photosynthesis. D) A black plant would absorb green wavelengths like most plants, but would absorb them more efficiently.
The path to a myocardial infarction starts with a fat-filled plaque blocking a coronary artery. This condition is called ________
A) atherosclerosis B) angioplasty C) a stent D) coronary bypass