I believe its the first one
Basically structure of DNA is very important in the process of replication.
DNA molecules have antiparallel structure i.e. the two strands of the halix run in opposite directions of one another. Each strand has 5 prime end and 3 prime end. Solving the structure of DNA unlocked the door to understanding many of the function of DNA, such as how it copied and how the information it carries can be used to produce protein.
As a result of gerrymandering, residential segregation remains a problem in the united states. The gerrymandering is a run through envisioned to form a political benefit for a particular party or group by handling district limits and the subsequent district is recognized as a gerrymander.
Have you tried the app Socratic it teaches and gives you answers...
Answer:
The skin produces sweat and oil.
*the skin acts as a barrier*
Explanation:
The skin does not identify and coordinate a response, that would be the immune system. The skin doesn't make mucus, the nose does that. The skin also does not make antibodies, the immune system does that.