Answer:
The correct answer is - a. DNA primers, and d. DNA polymerase that is heat stable.
Explanation:
In Polymerase chain reaction (PCR) there are many components are required in a overall process but there is two major components that are required for amplification of a specific section of DNA:
a. DNA primers- these are short and strands or sequence of ssDNA, a pair of these sequence acts as the starting site for a new strand which is used to hybridize with the sample DNA and mark the region of the DNA of interest to be amplified.
d. DNA polymerase that is heat stable- PCR technique involves various reaction that are performed at different temperatures. A thermophilic bacteria Thermus aquaticus is used to get this heat stable enzyme, Which lives in hot springs.
Thus, the correct answer is - a. DNA primers, and d. DNA polymerase that is heat stable.
Even when asymptomatic: <u>HIV </u>can be actively multiplying and killing cells in the immune system.
<h3>Effects of HIV </h3>
Human immunodeficiency virus is a virus which attacks the immune system of an infected body by killing cells in the immune system while multiplying rapidly. In the early stages of the infection the infected person might be asymptomatic but the virus will spread rapidly leading to an immune deficiency state.
Hence we can conclude that <u>HIV </u>can be actively multiplying and killing cells in the immune system.
Learn more about HIV : brainly.com/question/1686219
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Answer:
Photosynthesis happens in the leaves of a plant.
This is a chemical reaction, which takes place inside a plant, producing food for the plant to survive. For photosynthesis to take place, carbon dioxide, water and light are needed.
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