Using W=mg
12*10 m/sec squared
10 m/sec squared = 100
100*12
=
1,200 newtons
Flu vaccines need to be revised and changed every year because the flu virus constantly mutates. Flu viruses can change in two ways: drift or shift. Antigenic drift occurs when genes of the virus slowly change during replication until the immune system no longer recognizes it. On the other hand, antigenic shift occurs when a major change in the virus happens. This usually leads to a totally different kind of virus. This is what happened during the H1N1 scare in 2009.
DNA viruses like mumps are less prone to mutation due to the presence of DNA polymerase. RNA viruses are more prone to mutation because they undergo reverse transcription to simulate the role of DNA.
Answer:
so that the genetic variations are not directly exact
Explanation:
Answer:
<h2>I think, dead zoning is answer. </h2>
Explanation:
<h2>Hope it helps you.</h2>
This is asexual reproduction and it shows offspring that have the same genes as the parent, since the genetic material was copied before the division.
