Answer:
Infectious dose refers to the minimum number or amount of pathogens required in order to produce a disease or its symptoms. In the given case, the bacterium is non-resistant and is treated with antibiotics.
The antibiotics help in neutralizing the infectious agents; however, full course should be done to eliminate the infectious agent completely out of the body.
If the course is left in between then, there are very high chances that some bacteria may survive. They might not produce disease or symptoms as they would be less than infectious dose.
However, with time, the survived bacteria gain more and more mutations during replication which can develop antibiotic resistance capability in them.
In addition, it is also possible that the survived bacteria can get R-plasmid (which has antibiotic resistant gene) from body's normal flora or from any other infectious agent present in the body by the process of transformation or conjugation.
The R-plasmid enables them to survive even in the presence of antibiotics due to which the treatment of the disease might become difficult.
Shelled protozoans became part of 7 layers
Answer:
In sonographic measurements performed in the transverse view, the diameter of aorta (Ao) constituted 15.7 mm, the longer dimension of the inferior vena cava (IVC1) equaled 28.4 mm and the shorter one (IVC2) – 15.5 mm. In the longitudinal view, Ao equaled 15.3 mm and IVC – 18.8 mm (tab.
<span>A drug used to treat CML, imatinib, binds to the active site of Abl kinase. Why does this drug work to treat this type of cancer?
</span><span>B) By binding to the active site, the drug prevents the ability of Abl kinase to bind to its substrate.
</span>
Imatinib works against CML by binding close to the ATP binding site of bcr-abl. The binding results to the<span> locking in of the bcr-abl to a closed or self-inhibited conformation and inhibiting the enzyme activity of the protein </span><span>semi-competitively.</span>
Option D, they are watered more often than tomatoes grown in other gardens, is the right answer.
The improper watering to the tomato plants can lead to several cultivation issues. Watering tomatoes at after drying them out can also lead to tomatoes to swell suddenly and splitting the peel of the tomatoes which permits fungal germination to take hold causing the complete ruin of the fruit. Therefore, it may noticed that watering plays an important role in the cultivation of tomatoes. It is clear, therefore, that the reason behind the juiciest tomatoes is the watering; the Botanist watered tomatoes plants of his garden more than they were watered in other gardens.
