(Solved) Research two antibiotics and explain specifically how they work in inhibiting bacterial growth.

livestrong136

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Research two antibiotics and explain specifically how they work in inhibiting bacterial growth.

1. Research two antibiotics and explain specifically how they work in inhibiting bacterial growth.

2. A mutation is found in the gene that codes for the Lacl repressor protein gene. The protein no longer performs its intended function. Explain what would be the outcome at the gene level and for the E coli.

3. Explain Splice-site mutation?

4. Which do you think could be more damaging – a frameshift mutation or substitution mutation? Explain

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biolove

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12 years ago

Quote from: livestrong136 (12 years ago)

3. Explain Splice-site mutation?

A splice site mutation is a genetic mutation that inserts or deletes a number of nucleotides in the specific site at which splicing of an intron takes place during the processing of precursor messenger RNA into mature messenger RNA. The abolishment of the splicing site results in one or more introns remaining in mature mRNA and may lead to the production of aberrant proteins.

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biolove

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4. Which do you think could be more damaging – a frameshift mutation or substitution mutation? Explain

A frame-shift is definitely more damaging than the other one. With a frame-shift mutation, every subsequent nucleic acid in the DNA code is shifted either to the right or left. As a result, any mRNA that results out of the translation of that DNA will produce a peptide with an inaccurate sequence.

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biolove

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2. A mutation is found in the gene that codes for the Lacl repressor protein gene. The protein no longer performs its intended function. Explain what would be the outcome at the gene level and for the E coli.

I found this by using the search function of the website:

https://biology-forums.com/index.php?topic=11021.msg37418#msg37418

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biolove

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Quote from: livestrong136 (12 years ago)

1. Research two antibiotics and explain specifically how they work in inhibiting bacterial growth.

The antibiotic Amphotericin B disrupts plasma membranes by combining with sterols.

The antibiotic penicillin works by inhibiting cell wall synthesis of most bacteria.

Check out the diagram Wink Face

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livestrong136 Author

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12 years ago

thanks a million for answering all 4 of my questions.

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biolove

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No worries.

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