1. RNA has ribose sugar instead of deoxyribose
2. RNA is generally single-stranded instead of double-stranded
3. RNA contains uracil in place of thymine
Answer:
what is the question you basicly just gave us a paragraph to comment on
Explanation:
Answer:
The correct answer is- E) substrate-level phosphorylation
Explanation:
In substrate-level phoshorylation ATP is produced by the addition of a phosphate group to ADP by a phosphorylated intermediate formed during the reaction not from any inorganic molecule like in the case of oxidative phosphorylation.
In glycolysis 4 ATP are generated through substrate-level phosphorylation. For example when 1,3 phosphoglycerate converts into 3 phosphoglycerates and when phosphoenol pyruvate converts into pyruvate ATP is produced through substrate level phosphorylation. Therefore the correct answer is E.
In order for natural selection to occur, a selection pressure must be present. This selection pressure causes species to die out, and the ones that are able to cope with this pressure have what is called a selective advantage.
In the above mentioned scenario, the selection pressure on bacteria are the antibiotics that kill them. This occurs until some bacteria are born with a genetic mutation that allows them to survive the effect of an antibiotic.
Once this occurs, the bacterium is able to survive while the rest of the bacteria are wiped out by the antibiotic. This bacterium then has all of the present resources available to itself, which means that it can divide indefinitely until resources run out. It passes this antibiotic resistance to its offspring, and a strain of bacterium is formed which is resistant to antibiotics.
Hunting IS NOT a form of artificial selection because it is not a form of breeding. Artificial selection refers to the intentional breeding of plants or animals. An example would be a thoroughbred racehorses, because they were selectively bred.