Answer:
false
Explanation:
groundwater groundwater has an abundance of contaminants and pollutants
Your outer skin is your epidermis, so just look at your arm
Answer:
Communication, aphasia. :)
Explanation:
Answer:
DNA restriction enzymes cut the DNA molecule, while DNA ligases join the resulting DNA fragments
Explanation:
Transformation is a naturally occurring process by which bacteria incorporate exogenous genetic material from their surrounding environment. This process (transformation) is used for DNA cloning via plasmid vectors. In DNA cloning, transformation occurs after restriction enzymes cut the DNA at specific sequences named palindromic sequences (i.e, sequences that can be read the same in opposite direction). Restriction enzymes can generate sticky-ends, where enzymes make staggered cuts in the two strands (e.g., <em>BamH</em>), or blunt ends, where the resulting strands are of the same length (e.g., <em>HaeIII</em>). In general, sticky-end enzymes are more useful because they generate a 3' overhang in one molecule and a complementary 5' overhang in the other, increasing the yield and specificity of ligation. During ligation, a DNA ligase is used to join both DNA strands by forming phosphodiester bonds in the plasmid. Following transformation, bacteria can be selected on antibiotic plates.
The neuronal membrane potential depends on different concentrations of sodium and potassium on either side of the membrane. Ionic concentration gradients are established by the action of the sodium-potassium ion pump, an enzyme that requires ATP. Without ATP, the pump will not function. As a result, the resting membrane potential will not exist and the brain will not function.
What is neuronal membrane?
The neuron and its ionic components can be treated using the ideas mentioned above.
The neuron's plasma membrane is only minimally permeable to Cl and Na+ and extremely permeable to K+. A balance between a high concentration of Na+ and a high concentration of Cl, as well as modest amounts of impermeant anions like bicarbonate, phosphate, and sulfate, is what keeps the extracellular fluid's electroneutrality. The concentration of Cl in the cytoplasm, where K+ concentration is high, is substantially lower than what is required to balance the sum of the positive charges. There, negatively charged impermeant proteins and phosphates keep the environment electroneutral.
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