Answer:
The correct answer is option D- oligodendrites and Schwann cells.
Explanation:
Neuroglia or glial cells are the cells in the nervous system which support, protect and maintain the neurons. These neuroglia cells protect the neurons as they insulate the axons and dendrite by forming a sheath around the neurons called the 'myelin sheath".
Two different types of glial cells form this myelin sheath in CNS and PNS: Schwann cells in PNS while oligodendrocytes in CNS. These myelin sheaths provide insulation as they are formed by the spiral wrapping of the plasma membrane which is made up of hydrophobic molecule.
Thus, option D- oligodendrocytes and Schwann cells are the correct answer.
Answer:
B
Explanation:
The umbilical vein carries oxygenated, nutrient-rich blood from the placenta to the fetus, and the umbilical arteries carry deoxygenated, nutrient-depleted blood from the fetus to the placenta
Answer: Stool of infected person
Explanation: Hepatitis A is transmitted most often by STOOL of infected person
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Answer: Can you actually get $2,500 on brainly
Explanation:
Answer:
The correct answer to the question: Which of the following steps in transcription is most likely affected? Would be: Formation of the open complex.
Explanation:
Depending on the type of bacteria, and the different structures that form the cell, antibiotics of different kinds will seek these structures to either inhibit the cell from performing its normal activities and reproducing, or doing that plus killing it. Of the second kind, called bactericidals, like Rifamycin drugs, these accomplish their purpose precisely by inhibiting steps in the DNA to RNA transcription that will result in the production of erroneous mRNA strands, and therefore, faulty proteins. When these steps are stopped, the bacteria is unable to protect itself, or repair itself, and while the process continues, the antibiotic, in high levels, starts to also eliminate the bacterial cell. Specifically, according to research done, medication like Rifamycin will stop the transcription of DNA into RNA by binding to an RNA transcribing enzyme that is located in the channel formed by the polymerase-DNA complex. In this way, nucleotides that should be added to the mRNA chain are not added and the result that comes out will be really short chains that cannot be translated later into protein.
