In the amphibian embryo, the first cleavage bisects the gray crescent
____________________ Indicate whether the statement is true or false.
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Pyrosequencing is a widely utilized sequencing technique. In this reaction:
A. the generation of pyrophosphate stimulates luciferase to create light. B. sulfurylase activates luciferase, which then creates light. C. DNA polymerase adds dideoxynucleotides. D. apyrase generates pyrophosphate. E. sulfurylase converts pyrophosphate to ATP.
Some plants can tolerate flooding conditions by
A. formation of aerenchyma. B. opening their lenticels. C. forming additional adventitious roots. D. shedding their bark. E. pumping water out of their roots.
Which of the following is NOT a domain?
A) Plantae B) Bacteria C) Archaea D) Eukarya
Which of the following statements does NOT describe a function of the cell walls of bacteria?
A. They avoid disintegration in water with low concentrations of salt. B. They protect against other bacteria. C. They protect against viruses. D. They maintain cell shape. E. They prevent horizontal gene transfer.