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Answer:
DNA contains genes that can be read to create <u>messenger RNA</u> that directs the <u>ribosome</u> to build certain <u>proteins</u> as needed by specific cells or situations.
Explanation:
DNA is a nucleic acid that contains in its structure a specific sequence of nucleotides, whose quantity and order determine the genetic information of an individual. A chromosome consists of a DNA molecule, and each fragment of this molecule constitutes genes with specific instructions for determining structural and functional characteristics.
Transcription is the process by which DNA can be read and transcribed into messenger RNA (mRNA), a molecule that carries the genetic code to the ribosomes for protein synthesis, in a process called translation.
<em>When a </em><u><em>cell needs to synthesize a specific protein, transcription and translation mechanisms occur so that the protein can be synthesized</em></u><em>.</em>
Answer:
Isotonic Solution
Explanation:
There are commonly three types of solutions:
- Hypertonic solution = the concentration of solute is greater than in the cell
- Hypotonic solution = the concentration of solute is less than in the cell
- Isotonic solution= the concentration of solution and cell is same.
So, if the cell was in any other solution, it would have been burst or it would shrink. but nothing changed because it was in a solution where outside environment is similar to the internal environment
Proteins – what they are and how they're made. Proteins are the key working molecules and building blocks in all cells. They are produced in a similar two-step process in all organisms – DNA is first transcribed into RNA, then RNA is translated into protein.
Answer: Option A.
Transverse tubules rapidly move the action potential to the interior of the muscle potential.
Explanation:
Transverse tubules are cylindrical pockets found in the plasma membrane of muscle cells. They are formed from phospholipid bilayer or sarcolemma of skeletal or cardiac muscle cells. They have membrane that have large concentration of ion channels,transporters and pump. They permit action potention into the cell and also to a particular structure sarcuplasmic reticulum. They play a role in regulating cellular calcium concentration.