Composite-cone, a conical volcano built up by many layers of hardened lava, tephra, pumice, and volcanic ash.
Answer:
The knee
Explanation:
The thoracic cavity is the chest cavity and the knee is the most distal
Answer:
c silent mutation
Explanation:
The given mutation changes the genetic code "GGC" to "GGA". According to the genetic code table, both "GGC" and "GGA" code for glycine. Since both mutated and normal codon code for the same amino acid, that is glycine, the mutation would not have any effect on the function of the gene.
The point mutation that does not affect the function of a gene is called a silent mutation. Hence, the given example represents the silent mutation.
B
The net result of excretion of H+ in the urine is the __conversion of CO₂ to H₂CO₃__ within the blood.
Explanation:
Excretion of H+ ions from the blood via urine means decreasing the H+ content in the blood. This consequently means the blood pH rises ad becomes more basic (remember H+ ions are responsible for acidity for a solution). For the body to maintain the homeostatic pH of between 7.35 and 7.45, the carbonic anhydrase activity will increase hence dissolving more CO₂ into the blood plasma to form carbonic acid (H₂CO₃). Carbonic acid dissociated fast into H⁺ and HCO₃⁻. The H+ from the dissociation replenishes the H⁺ to the right concentration.
Learn More;
For more on blood pH check out;
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Answer: Phosphorylation of mitotic sites at the start of mitosis (N-terminal S22 and C-terminal S392 in human lamin A/C)
Explanation: During mitosis the nuclear lamina is dissociated by phosphorylation- dependent mechanisms that causes conformational changes in structure at N- and C-terminals (non alpha helical terminals) during the start of cellular mitosis that leads to its disassembly. This is because the nuclear lamina has two sites that accept phosphates (phosphoacceptor sites) causing a phosphorylation reaction.
The nuclear lamina is a fibrillar network of intermediate filaments as well as membrane proteins and are involved in DNA replication, cellular division as well as providing mechanical support within the cell.
