According to the research, acids and bases are two different types of substances opposite to each other and it is neutral when it is neither acidic nor alkaline.
<h3>What is an acid, base or neutral substance?</h3>
- An acid is that chemical substance capable of transferring protons (H+) to another chemical substance.
- A base is that chemical substance capable of capturing protons (H+) from another chemical substance.
- A neutral substance is one that when dissolved in water dissociates into its ions.
Therefore, we can conclude that according to the research, acids and bases are two different types of substances opposite to each other and it is neutral when it is neither acidic nor alkaline.
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Answer:
The atmospheric pressure goes on decreasing as we go up above the sea-level. Therefore, the amount of oxygen also decreases at higher altitude. Due to this reason, mountaineers carry oxygen cylinders with them, while climbing high mountains
Explanation:
Answer:
C. 3, 2, 1
Explanation:
During a single PCR cycle, the very first step is the heat separation of the double stranded DNA. Primer binds only single stranded DNA/RNA because it has complimentary bases which match single strand of DNA/RNA that is why it is necessary to unwind both the strands of DNA by providing temperature.
As soon as the DNA strands have separated by increasing the temperature to ~ 95 °C, in the next step the primer binds the portion of DNA which is complimentary to the bases of the primer. In order for primer to bind DNA, the temperature is lowered to ~ 72 °C and the process is called as annealing.
Once primer has bound to the DNA, the next step is polymerization i.e. nucleotides which are the monomer units of DNA are added one by one with the help of enzyme named as Taq polymerase. This is how the strand extends ahead of primer and exact copies of the given DNA are produced.
Note: PCR may be considered as in vitro DNA synthesis or replication.
