Answer:
1 day.
Explanation:
From the given information:
The rate of mutation induced by RNA polymerase is:
Since the genome comprise of 19000 bp;
To complete a single replication, the viral cycle induce: 
However, in a single day; 10,000,000,000 viruses are reported to be replicated.
Hence, if a virus has 2 mutations; Then 10,000,000,000 virus will have:
SO, to round this up to whole number, it will take 1 day (s) to overcome the therapy.
Answer:
Option A, Hormones are controlled by a feedback loop; information about a system is sent back to the controller of the system to improve its function.
Explanation:
Negative feedback loop controls the hormone production and release. This is done by eliciting the release of substances till a certain level after which the stop signal is activated thereby preventing further release. By this method, concentration of hormones in blood is maintained within the narrow range.
For example – Thyroid hormones is released when the anterior pituitary signals the thyroid. This continues till the hormones in the blood reach the threshold level. Once the threshold level is reached, hypothalamus receives a feedback and then signals anterior pituitary to inhibit further signaling to the thyroid
Hence, option A is correct
Answer:
cell wall, cell membrane, cytoplasm, vacuole, ER and nucleous
Explanation:
