Answer:
DNA is the 33 chromosomes. RNA is the protein that exists in viruses... that's All what I know.
Answer:
Explanation:
Animals obtain carbon by eating and gaining nutrients. This gives them carbon. They get hydrogen by water and glucose. They get nitrogen from food.
Answer:
The correct answer will be option- is characterized by exaggerated vasoconstriction in the extremities
Explanation:
Raynaud's disease is the condition caused when the blood vessels react in an exaggerated way to the emotional or cold stress.
The condition occurs to maintain the temperature of the body in the normal range as in cold conditions the blood vessels constrict to maintain the warmth of the body inside the heart, brain and the vital organs.
The blood vessels undergo vasospastic attack by blocking the flow of blood causing the skin to turn red, blue or white.
Thus, the selected option is the correct answer.
D. Carbon
Please give brainliest if I’m correct :’)
Answer:
(A) A transversion base substitution causing a missense mutation
(B) A transition base substitution causing a silent mutation
(C) A transversion base substitution causing a silent mutation
Explanation:
There are two types of base substitutions, transversions and transitions. A transition is when the a purine base is substituted with another purine base or a pyrimidine base is substituted with a pyrimidine base (e.g. Purines - A to G; G to A; Pyrimidines - C to T; T to C). A transversion occurs when a purine base is substituted with a pyrimidine base or a pyrimidine base is substituted with a purine base (e.g. A to T; C to A).
There are three main types of mutations, these are missense mutations, nonsense mutations and silent mutations. Missense mutations occur when a base is changed and the codon now codes for a different amino acid to before the mutation. Nonsense mutations occur when a base is changed and now the codon codes for a stop codon causing a premature stop of the translation process. Silent mutations occur when a base is changed but the new codon still codes for the same amino acid as before the mutation.
