Younger honeybees have higher levels of juvenile hormone
a. True
b. False
ANSWER: False
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One of the ways agricultural production of such fruits as tomatoes or cucumbers can be increased significantly is to grow them in:
A. soils rich in magnesium. B. soils rich in nitrogen. C. greenhouses supplied with extra carbon dioxide. D. greenhouses with extra oxygen. E. None of these is true.
Most coastal pollution comes from
a. oil spills from ships. b. dumping of trash. c. military disposal. d. runoff from urban and agricultural lands. e. nuclear power plants.
You are studying a disease that is known to be caused by a single nucleotide change in a single gene, although the effect this change ultimately has on the protein's structure and function is unknown. You have DNA samples from multiple patients that you suspect of having this disease. What is the most efficient way to test the samples for the relevant mutation?
A) Preimplantation genetic diagnosis B) PCR amplification followed by Sanger DNA sequencing C) PCR amplification followed by gel electrophoresis D) High-throughput exome sequencing E) High-throughput genome sequencing
The common ancestor of all animals is likely to have been a ________.
A) colonial, flagellated protist B) colonial, ciliated protist C) colonial, flagellated bacterium D) colonial, ciliated bacterium