Reactions that hydrolyze the phosphodiester bonds split the DNA molecule between the phosphate groups and the hydroxyl groups of the two sugar groups.
In DNA there is a covalent bond through a phosphate group that connects the hydroxyl group (OH) at the 5' position of the pentose sugar and the hydroxyl group at the 3' position of the pentose sugar of the next nucleotide. This covalent bond is called a phosphodiester bond because chemically the phosphate group is in the diester form.
In other words, the phosphodiester bond connects the sugar in one nucleotide to the sugar in the next nucleotide, so this bond simultaneously connects the two consecutive nucleotides to form a polynucleotide chain. If there is an enzyme that catalyzes the hydrolysis of covalent bonds that combine nucleotides, what happens is that the phosphodiester link between deoxyribose sugars will break.
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Answer:
4. Methicillin is a strong antibiotic and MRSA developed resistance to it, making it harder to treat.
Explanation:
MRSA was first discovered in 1961. It's now resistant to methicillin, amoxicillin, penicillin, oxacillin, and other common antibiotics known as cephalosporins.
A light-powered microscope
Answer:
C. The village probably cannot afford a desalination plant.
Explanation:
Desalination may be defined as treating water to make it consumable for human use and drinking purposes.
A desalinated plant separates the saline or salt water in two streams. One is fresh water stream for drinking and farming and the other contains dissolved salts.
The setting up of a desalinated plant is very demanding and costly and the running cost is also huge. It takes a lot of energy and resources to set up and run a desalinated plant.
Thus in the context, the village would not be able to afford a desalination plant.
<span>Viewing of the behavior of groups in a systematic way is known as sociological perspective.
Sociology views provide us with different perspectives which helps us to view social world. Sociology has three major theoretical perspectives which include functionalist perspective, symbolic interactionist perspective, and conflict perspective.
Different perspectives offer a variety of explanations on human behavior and social world.</span>
