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.
Is this a multiple choice question? if yes the answer is c/organic!
<em>The ability of an organism to alter greatly its PHENOTYPE depending upon environmental conditions. The phenomenon is seen most clearly in plants, perhaps because they are fixed in the ground. For example, a dandelion will produce an erect habit with long flower stalks if in a garden border with other plants.</em>
Botulism<span> is a disease </span>caused<span> by this neurotoxin (specifically A, B, E, or F type neurotoxin); symptoms include a </span>flaccid paralysis<span> (weakness or slackness) in various muscles. The neurotoxin is produced by bacteria called Clostridium</span>botulinum<span>. The neurotoxin paralyzes muscles and </span>can<span> be deadly.</span>