Answer:
Normally, transcription begins when an RNA polymerase binds to a so-called promoter sequence on the DNA molecule. ... Some regulatory proteins affect the transcription of multiple genes. This occurs because multiple copies of the regulatory protein binding sites exist within the genome of a cell.
Explanation:
Answer:
A. When two tectonic plates start to push into each other they can rise up and build mountains, or sink under and create deep valleys.
Explanation:
It is true
Flu vaccination can help you from getting sick with flu. Vaccine reduces the risk of infection by working with body’s natural defenses to help them safely develop immunity to diseases. If you get sick, flu vaccine will make your illness milder.
Answer:
correct option is a. more realistic
Explanation:
we know that marriage is legally relationship between a husband and a wife
and some for of marriage are
1 Arranged marriage
2 Civil marriage
3 Common law marriage
4 Boston marriage
5 Berdache marriage
and in second marriage
age and experience will be more
so as they age, they have gained experience from their past life
so we can say that in second marriages old couples tend to be more realistic
so correct option is a. more realistic
Check here for the answer:https://www.smartlivingnetwork.com/immunity-system/b/what-are-macrophages-and-how-do-they-affect-you...