<span> is an </span>inactive vaccine<span> used to prevent </span>tetanus.[1]<span> During childhood five doses are recommended, followed by additional doses every ten years. After three doses almost everyone is immune.</span>[1]<span> In those who are not up to date on their tetanus immunization a booster should be given within 48 hours of an injury.</span>
Answer:
The dependent (or responding) variable is the one that is observed and likely changes in response to the independent variable.
Explanation:
Hot water, pan to hold water, stopwatch and thermometer are the pieces of equipment which would be useful for investigating the claim.
<h3>
What is Temperature?</h3>
This is the degree of hotness or coldness of a substance and it is measured with the use of the thermometer.
Since temperature is involved, the thermometer and heat source are important thereby making option D the most appropriate choice.
Read more about Thermometer here brainly.com/question/2339046
Since penicillin interferes with peptidoglycan synthesis, it means that the drug will have no effects on archaea.
<h3>Archaea cell walls</h3>
The cell wall of archaea consists mostly of polysaccharides and glycoconjugates. In order words, the cell walls of archaea lack peptidoglycan.
Since penicillin kills bacteria by interfering with the synthesis of peptidoglycan, it simply means that the drug will have no effect on archaea, since they do not have peptidoglycan in their cell walls.
More on archaea can be found here: brainly.com/question/1475001
Answer:
B. The inducer combines with the repressor and inactivates the repressor.
Explanation:
A repressor is a negative regulatory protein. It inhibits transcription when bound to DNA. The inducer is a molecule that binds to a repressor protein. Binding of inducer to the repressor converts it into an inactive form. The inactive repressor is unable to prevent transcription. Therefore, when the inducer is added to the medium, it would bind to the repressor to inactivate it.
For example, the repressor protein of lac operon binds to the operator region and does not allow the expression of the lac operon. When lactose is present in the medium, few of the lactose molecules enter the bacterial cell and are converted into allolactose which in turn binds to the repressor protein. Binding of allolactose to repressor protein alters the shape of the repressor protein in such a way that it is no longer able to bind to the operator region. Here, allolactose is the inducer.
