Questions from Genetics


Q: What is heterosis? Discuss whether it is caused by a single

What is heterosis? Discuss whether it is caused by a single gene or several genes. Discuss the two major hypotheses proposed to explain heterosis. Which do you think is more likely to be correct?

See Answer

Q: What is a reconstituted virus?

What is a reconstituted virus?

See Answer

Q: Following the infection of healthy tobacco leaves by reconstituted viruses, what

Following the infection of healthy tobacco leaves by reconstituted viruses, what two characteristics did Fraenkel-Conrat and Singer analyze? Explain how their results were consistent with the idea tha...

See Answer

Q: Certain drugs to combat human viral diseases affect spike glycoproteins in the

Certain drugs to combat human viral diseases affect spike glycoproteins in the viral envelope. Discuss how you think such drugs may prevent viral infection.

See Answer

Q: Some drugs that inhibit HIV proliferation are inhibitors of HIV protease.

Some drugs that inhibit HIV proliferation are inhibitors of HIV protease. Explain how these drugs would help to stop the spread of HIV.

See Answer

Q: Explain how the technique of replica plating supports the random mutation theory

Explain how the technique of replica plating supports the random mutation theory but conflicts with the physiological adaptation hypothesis.

See Answer

Q: Outline how you would use the technique of replica plating to show

Outline how you would use the technique of replica plating to show that antibiotic resistance is due to random mutations.

See Answer

Q: From an experimental point of view, is it better to use

From an experimental point of view, is it better to use haploid or diploid organisms for mutagen testing? Consider the Ames test when preparing your answer.

See Answer

Q: Can this trait be passed to offspring?

Can this trait be passed to offspring?

See Answer

Q: How would you modify the Ames test to evaluate physical mutagens?

How would you modify the Ames test to evaluate physical mutagens? Would it be necessary to add the rat liver extract? Explain why or why not.

See Answer