C. Upward; downward. As the hot rock rises, cooler rock flows downward to take its place next to the core, where it is heated and becomes buoyant enough to rise again later
Answer:
AUG CAG UUC UUG CGC GAA UAA GCA AU
Explanation:
tRNA pairs with mRNA to make a chain of amino acids that form a protein, through the process of translation. The anti-codons in the tRNA are complementary to the codons in the mRNA. Through the rules of complementary base pairing, A always pairs with T/U and G always pairs with C.
T/U is because in DNA, the base is thymine (T), but in RNA, the base is uracil (U).
Therefore, wherever you see a U in the mRNA sequence, the complementary tRNA is A. Whenever you see an A, the complementary tRNA is U. Whenever you see a G the complementary base is C, and whenever you see a C, the complementary base is G.
The equation can be used to calculate b. population density
B. Global warming accelerates the greenhouse effect
Answer: Antibiotics targets the synthesis of protein, nucleic acid, folate and cell wall.
1. Synthesis of protein; antibiotics binds to either 30s or 50s ribosomal subunits blocking the polypeptide from the exiting the tunnel thus inhibiting a full completion of protein expression or production.
2. Nucleic acid synthesis; Antibiotics also act by inhibiting genetic expression, DNA transcription and replication where DNA makes exact copies of itself, as well as RNA molecules preventing bacterial growth.
3. Cell wall synthesis; Inhibition of cell wall synthesis in microorganisms will prevent it from replication and growth.
4. Folate synthesis; Folic acid also known as vitamin B9 helps in DNA replication and cell division. Folate antagonists such as aminopterin kills bacteria by preventing folic acid production required for DNA replication.
