Which of the following technologies uses electricity to sort DNA fragments based on their sizes?

A.) genetic screening
B.) gel electrophoresis
C.) DNA microarrays
D.) genetic engineering


Answer: B.) gel electrophoresis

Biology & Microbiology

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Which process in eukaryotic cells will proceed normally whether oxygen (O2) is present or absent?

A) electron transport B) glycolysis C) the citric acid cycle D) oxidative phosphorylation E) chemiosmosis

Biology & Microbiology

A pesticide targets the endodermal layer in developing mosquitoes. Based on this, which of

the following will likely not develop correctly?

a. muscles b. gut c. outer exoskeleton d. reproductive system

Biology & Microbiology

Arrange the following levels of geological eras in the correct order. Write the letter of the oldest period

next to 1 and the letter of the newest period next to 10.

A. Triassic B. Permian C. Archaean D. Cretaceous E. Devonian F. Cambrian G. Silurian H. Jurassic I. Ordovician J. Carboniferous 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.

Biology & Microbiology

Four of the five answers listed below are trends in hominid evolution. Select the exception

a. ectothermy b. enhanced vision c. upright vertebral column d. omnivorous feeding behavior e. enhanced tool making

Biology & Microbiology