Answer:
B
Explanation:
RNAi is a cellular mechanism for post-transcriptional gene silencing. After transcription of a gene into mRNA, small interfering RNA (siRNA) and microRNA (miRNA) can target the mRNA to form dsRNA. This mRNA then becomes a target of ribonucleases such as the Dicer that break it apart. These mRNA, therefore, do not reach the cytoplasm for translation by ribosomes. This mechanism is hence harnessed and manipulated by scientists to study genes by silencing them.
A <u>Scientific method </u>is a series of steps used to determine solutions based on needs and wants.
<h3>What is needs assessment?</h3>
A needs assessment is a process that bridges the gap between an organization's current state and the desired conditions. It is a systematic procedure for identifying and addressing performance gaps as well as repairing any defects that may occur in an organization.
<h3>What are the six steps of the scientific method?</h3>
- Describe the issue :Observation with intent
- research : learn more about the subject
- educated guess : hypothesis forecast the outcome of the problem
- experiment :Create a procedure for testing the hypothesis.
- analyze :Keep track of the experiment's outcomes.
- conclusion : compare the hypothesis to the results of the experiment
<h3>What are the Characteristic Features of Scientific Methods?</h3>
- Students learn to identify and formulate scientific problems correctly and in an organized manner using scientific methods.
- Students are trained in information processing techniques using scientific methods.
- Scientific methods help students develop the ability to think critically and rationally, allowing them to make decisions on logical and rational grounds.
Learn more about steps of Scientific methods:
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They are all zones found in freshwater systems. Freshwater biological
Enzymes are proteins that contains ribonucleic acid (RNA) .An enzyme binds to one or more reactant Molecule in order to catalyze a reaction.
Explanation:
1. Enzymes speed up chemical reactions by lowering the Activation Energy, which allows the reaction to proceed much more quickly.
2. During an enzymatic reaction, a molecule of Substrate binds to the enzyme and is broken down into one or more molecules of product, which are released.
3. The induced fit between an active site and its substrate often strains bonds and helps the reaction proceed
4. The specific location within an enzyme molecule where the substrate binds is called the Active site.
5. Lactose takes years to break down on its own. But if exposed to the protein lactase, the reaction proceeds very quickly, while lactase itself remains unchanged. Lactase is an example of an enzyme
6. High temperatures or changes in pH can an enzyme, causing it to lose its shape and biological activity. An inhibitor is a molecule that can bind to an enzyme and prevent the enzyme from working.
7. An enzyme is considered a Catalyst because it speeds up a chemical reaction without being used up.
Cells can repair themselves in a molecular level through its DNA and the process involve, either the old damage cells are renewed and resynthesized by new ones as cell divides and undergoes such division.
<span><span>Organelles
are tiny parts of a cell, in analogy are like organs. They perform
various tasks vital for a cell to survive. They deliver information,
send nutrients and excrete waste and protect cells from antibodies and
other microorganisms that could and possible harm the cell itself.<span> </span></span>
Cells repair themselves through the process of cell division and mitotic process. <span>Mitosis
occurs more in your body since it changes, modifies and requires cell
division at maximum rate in many useful situations with the stand to a
particular system and organ. Mitosis and meiosis are simply cell
division processes that occurs differently, they're characteristically
divergent from each other according to their function and structure.<span>
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