A man is taking a number of medications, one of which appears to be interfering with the emission phase of the sexual act. Which of the following medications could cause this problem?

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#Question id: 3781

#Unit 3. Fundamental Processes

Hershey and Chase used a DNA-based virus for their work. How might the results have been different if they had used an RNA virus?

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#Question id: 12349

#Unit 10. Ecological Principles

Males in a population differ in the time they spend displaying to females. A researcher hypothesizes that predators are responsible for these differences. Males display for longer durations when there are no predators in the vicinity and for shorter durations when there is a predator nearby. Which of the following study designs is the most appropriate test of this hypothesis?

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#Question id: 19182

#Unit 13. Methods in Biology

Generally, amplification is carried out between the PCR primers. But if amplification is carried out outside the primers, it is called as __________

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#Question id: 23983

#Unit 8. Inheritance Biology

A large chromosomal aberrations can be detected by staining in the chromosomal banding pattern that have been stained with banding agent such as quinacrine or Giemsa, which statement correct predict that the chromosome undergo for duplication?

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#Question id: 11657

#Unit 10. Ecological Principles

In the following diagram, three models succession are represented. In this diagram A,B,C and D are the species  and arrows indicate replaced by

Based on the above, which statement is correct.