A molecule that can be used as an antibiotic is known to be capable of inhibiting...

A molecule that can be used as an antibiotic is known to be capable of inhibiting bacterial growth in the presence of lactose as the sole source of carbon. However, in the presence of glucose the bacteria grow normally. What mechanisms could justify this behavior? Discuss at least two possibilities

Expert Solution

gladiator answered 1 year ago

A region of the mRNA that is capable of binding a molecule, in turn altering the...

A region of the mRNA that is capable of binding a molecule, in turn altering the mRNA’s expression level, is called a: Kozak sequence SWI/SNF complex Riboswitch Shine-Dalgarno sequence Homeobox

Tobramycin in an antibiotic commonly prescribed for bacterial conjectivitis (pink-eye). Tobramycin works by inhibiting the assembly...

Tobramycin in an antibiotic commonly prescribed for bacterial conjectivitis (pink-eye). Tobramycin works by inhibiting the assembly of the 30S and 50S ribosomal subunits. a. Would mRNA binding and initiator tRNA binding still be likely to occur in bacteria undergoing tobramycin treatment? Briefly explain your rationale. b. Both the 30S and 40S ribosomal subunits contain non-coding RNAs with ribozyme activity. Name and briefly describe the role of one other non-coding RNA in the cell.

Doxyxycline is a tetracycline antibiotic used to fight disease in humans, but can negatively affect the...

Doxyxycline is a tetracycline antibiotic used to fight disease in humans, but can negatively affect the health of eukaryotic cells. Using evolutionary arguments to support your answer, why is doxycyline able to impact mitochondrial activity and is not able to bind to eukaryotic small ribosomal subunits? What central dogma of biology does doxycyline work to inhibit within bacterial cells?

1. What traits of bacteria make them capable of quickly developing antibiotic resistance? Choose 2 of...

1. What traits of bacteria make them capable of quickly developing antibiotic resistance? Choose 2 of these traits and explain how they could contribute to antibiotic resistance in a bacterial population. (Hint: Think of how bacteria reproduce.) 2. In the Herd Immunity assignment, you saw visualizations of diseases like Seasonal Flu, Ebola, and Measles spreading through populations at various levels of vaccination. In the event of a new, or "novel" disease there is no vaccine available. This is comparable to...

There are several eukaryotic species (for example, Tetrahymena thermophila) known to contain introns that are capable...

There are several eukaryotic species (for example, Tetrahymena thermophila) known to contain introns that are capable of splicing themselves out of an RNA transcript without the assistance of any proteins. How would you go about proving that no proteins are required for these self-splicing introns to function correctly?

The enzyme known as alcohol dehydrogenase is capable of oxidizing ethanol, methanol and other hydroxyl group...

The enzyme known as alcohol dehydrogenase is capable of oxidizing ethanol, methanol and other hydroxyl group containing organic compounds into their corresponding aldehydes. Such an enzyme with ___ catalyzes the reaction of structurally related substances. Select one: a. absolute specificity b. relative specificity c. stereospecificity d. no specificity

What are ways to grow antibiotic-resistant organisms and how can you measure their antibiotic resistance

2. A certain antibiotic is known to cure 85% of streptococcal bacterial infections. A scientist wants...

2. A certain antibiotic is known to cure 85% of streptococcal bacterial infections. A scientist wants to make sure that the drug does not lose its potency over time. He treats 100 streptococcal patients with a one year old supply of the antibiotic. (a) What are the mean and standard deviation of the sampling distribution of the sample proportion of individuals who are cured? State any required assumptions. (b) What is the probability that more than 90% in the sample...

Critically evaluate the role that culture (organizational and national) can play in facilitating or inhibiting knowledge...

Critically evaluate the role that culture (organizational and national) can play in facilitating or inhibiting knowledge sharing.

Erythromycin is an antibiotic used to treat bacterial infections, by binding in front of the A...

Erythromycin is an antibiotic used to treat bacterial infections, by binding in front of the A site on the 50S subunit of a ribosome. Why is Erythromycin effective against bacterial infections while causing minimal side effects on human cells? Group of answer choices 1Bacterial ribosomes are 80S; cytoplasmic ribosomes in eukaryotes are 70S (so the drug will only target the bacterial ribosome) 2.Bacterial ribosomes are 70S; cytoplasmic ribosomes in eukaryotes are 80S (so the drug will only target the bacterial...

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