Questions from Genetics


Q: In general, why is it important to regulate genes? Discuss

In general, why is it important to regulate genes? Discuss examples of situations in which it would be advantageous for a bacterial cell to regulate genes.

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Q: What is a viral envelope? Describe how it is made.

What is a viral envelope? Describe how it is made.

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Q: Explain why the events shown in part (a) inhibit transcription

Explain why the events shown in part (a) inhibit transcription. From Figure 15.15a:

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Q: What do the terms host cell and host range mean?

What do the terms host cell and host range mean?

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Q: Describe why the attachment step in a viral reproductive cycle is usually

Describe why the attachment step in a viral reproductive cycle is usually specific for one or just a few cell types.

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Q: Compare and contrast the entry step of the viral reproductive cycle of

Compare and contrast the entry step of the viral reproductive cycle of phage λ and HIV.

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Q: What is the role of reverse transcriptase in the reproductive cycle of

What is the role of reverse transcriptase in the reproductive cycle of HIV and other retroviruses?

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Q: Describe how lytic bacteriophages are released from their host cells.

Describe how lytic bacteriophages are released from their host cells.

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Q: Is each of the following mutations a transition, transversion, addition

Is each of the following mutations a transition, transversion, addition, or deletion? The original DNA strand is 5′–GGACTAGATAC–3′ (Note: Only the coding DNA strand is shown.) A. 5′–GAACTAGATAC–3′...

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Q: Explain two ways that a chromosomal rearrangement can cause a position effect

Explain two ways that a chromosomal rearrangement can cause a position effect.

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