They do divide! You just don't notice it. Also, some cells can't replicate because it's a major use to your body. They can't get old... For some reason...
Explanation:
Option A is the correct answer.
Is said to be denatured.
Denaturation occurs when the environment around has a extremely high temperature of extreme pH values comparing to the optimum values of the enzyme. Each enzyme has their own optimum temperature and pH.
In the case, the lost its three-dimensional structure and can no longer function because the shape of the active site is altered and thus it can no longer bind into substrates.
Answer:
The heat sensitive polymerase would be denatured resulting in formation of little or no PCR products.
Explanation:
PCR is a technique that forms multiple copies of a small DNA sample. For the purpose, the DNA sample is exposed to very high-temperature conditions (around 95 degrees C) to facilitate the denaturation of DNA helix. These high-temperature conditions denature enzymes such as heat-sensitive DNA polymerases. Therefore, no or very little DNA molecules will be formed by the end of the process as the denatured DNA polymerase would not be able to extend the primers.
To avoid these conditions, heat-tolerant Taq polymerase is used in PCR which can withstand the extremely high-temperature conditions of PCR.
