Answer:
The nitrogenous bases of DNA are categorized into two types depending on their structure: Pyrimidines which contains a six-membered ring-like cytosine, thymine and uracil and purines which contains six members rings attached to a five-membered ring like in guanine and adenine.
The base pairing in DNA double-helical structure always takes place between purine and pyrimidines as:
1. The pairing between the purines and pyrimidines results in uniform diameter between two strands which provides stability to the ladder-like the structure of DNA.
2. The chemical side groups attached to the nitrogenous bases allow the formation of hydrogen bonds between purine and pyrimidines.
Therefore, A always binds T through two hydrogen bonds and G always bind C through three hydrogen bonds.
Answer:
Change in direction
Explanation:
"Rotation" refers to an object's spinning motion about its own axis. "Revolution" refers the object's orbital motion around another object.
Cytoplasm is the gel-like fluid that fills the cell and surrounds the organelles.
The answer would be hypothalamus.
Hypothalamus is a part of the brain that located below the thalamus (hypo mean "under"). Hypothalamus can control nervous and endocrine system. It was divided into front/anterior, tuberal and back/posterior part. Thirst would be regulated by anterior and posterior part, temperature by anterior part and sexual behaviour by anterior part.
Answer:
I think that the first one is the Bahamas