Under control conditions, flow through a blood vessel is 100 ml/min under a pressure gradient of 50 mm Hg. What would be the approximate flow through the vessel after increasing the vessel diameter to four times normal, assuming that the pressure gradient was maintained at 50 mm Hg?

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#Question id: 12251

#Unit 10. Ecological Principles

A plant produces flowers that are open through the day and the night. An experimenter places pollen on the stigmas of freshly opened flowers and covers them after pollination to prevent natural pollinators from having access to the flowers. When experimental pollination was carried out during the day, 40% of the flowers yielded fruit. When experimental pollination was carried out during the night, 80% of the flowers yielded fruit. However, when flowers were  kept  open  to  natural  pollination  during  the  day  (covered  at  night),  35%  of  flowers  produced  fruit.  20%  of flowers exposed to natural pollination during the night (covered during the day) produced fruit. Which of the following statements is NOT a plausible explanation of these results ?

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#Question id: 5316

#Unit 11. Evolution and Behavior

Why is sequencing of eukaryotic genomes more difficult than sequencing genomes of bacteria or archaea?

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#Question id: 15811

#Unit 5. Developmental Biology

In XX Drosophila, which gene is activated during the first 2 hours after fertilization?

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#Question id: 24170

#General Aptitude

Cosmetic plastic surgery is one of the fastest-growing segments of U.S. medicine.

TLS Online TPP Program

#Question id: 918

#Unit 1. Molecules and their Interaction Relevant to Biology

Transport of fatty acids from the cytoplasm to the mitochondrial matrix requires: