"Posttranscriptional" Pronounce,Meaning And Examples

"Posttranscriptional" Natural Recordings by Native Speakers

Posttranscriptional

"Posttranscriptional" Meaning

Posttranscriptional refers to a stage of gene expression that occurs after transcription, i.e., after the DNA has been transcribed into RNA. At this stage, the RNA molecule undergoes various modifications, such as splicing, editing, and translation initiation, before it is finally translated into a protein.

In more detail, posttranscriptional processes include:

1. Splicing: the removal of introns (non-coding regions) and the joining of exons (coding regions) in a single RNA molecule.
2. Editing: the correction of errors or the modification of specific nucleotides in the RNA molecule.
3. Transport: the movement of RNA molecules from the nucleus to the cytoplasm, where translation occurs.
4. Regulation: the control of RNA stability, localization, and translation through various mechanisms, such as microRNAs, siRNAs, and other regulatory RNAs.

These posttranscriptional modifications can significantly affect the final amino acid sequence of the protein and the overall function of the gene.

"Posttranscriptional" Examples

1. In molecular biology, posttranscriptional modifications refer to changes made to a gene's transcript after it has been transcribed but before it is translated into protein.

2. RNA interference (RNAi) is a powerful tool used in molecular biology to silence gene expression at a posttranscriptional stage.

3. Gene expression is tightly regulated through both transcriptional and posttranscriptional mechanisms to ensure proper cellular functions.

4. The regulation of posttranscriptional gene expression plays a crucial role in many diseases, including cancer and viral infections.

5. Understanding posttranscriptional processing of mRNAs can provide insights into the mechanisms underlying cellular regulation and contribute to the development of novel therapeutic strategies.

"Posttranscriptional" Similar Words

Postscriptum

A Latin term used to indicate something added at the end of a letter or document, often personal or supplementary information, after the main content has been concluded. Example: "Dear John, ... PS (Postscriptum) - Don't forget to bring your umbrella tomorrow it might rain." In a more literary sense, postscriptum can be used in poetry or fiction to convey an afterthought or a hidden message.

Postsecondary

Referring to education or training that occurs after secondary education, typically at a college, university, or vocational school. It applies to students who have completed high school but have not yet started their careers.

Postspermatogonial

Postspermatogonial cells are the cells that remain in the base of the hair follicle after the hair growth cycle ends. They're reserve cells that can give rise to new hair follicles, helping to replace those that have finished their growth cycle and are ready to fall out.

Poststructuralism

Poststructuralist

A term used to describe a critical approach in various fields like philosophy, sociology, cultural studies, and literary theory. Poststructuralism argues that meaning is not fixed or stable, and that language and culture are fluid and constantly in flux. Key features of poststructuralism include: 1. Challenging traditional notions of meaning: Poststructuralists reject the idea that meaning is fixed, objective, and stable. Instead, they argue that meaning is created through multiple and conflicting interpretations. 2. Diversification of knowledge: Poststructuralists emphasize the importance of multiple perspectives and the diversity of knowledge. They argue that truth is not absolute, but rather a product of complex power dynamics and social contexts. 3. Challenge to grand narratives: Poststructuralists critique the idea of grand narratives, or overarching explanations that claim to explain everything, such as Marxism or Enlightenment rationalism. 4. Focus on difference and diversity: Poststructuralists emphasize the importance of acknowledging and valuing differences, rather than trying to assimilate or exclude them. 5. Questioning authority and power: Poststructuralists challenge traditional structures of authority and power, arguing that knowledge is shaped by dominant groups and interests. Key thinkers associated with poststructuralism include: Jacques Derrida (French philosopher and literary critic) Michel Foucault (French philosopher and historian) Jean Baudrillard (French philosopher and sociologist) Gilles Deleuze (French philosopher) Julia Kristeva (Bulgarian-French philosopher and literary theorist)

Poststructuralists

Poststructuralists are a group of scholars and thinkers who emerged in the mid-20th century, primarily in Europe and North America. They criticized and expanded upon the structuralism movement, which was primarily focused on the study of the underlying structures of language and culture. Poststructuralists aimed to destabilize and question the dominant power structures, including language, knowledge, and societal norms. They argued that these structures were not fixed or essential, but rather were subject to historical, cultural, and political constructions. Key ideas associated with poststructuralism include: 1. Rejection of grand narratives: Poststructuralists challenged the idea of universal, overarching narratives that explain everything. They argued that knowledge is fragmented and incomplete, and that narratives are always provisional and context-dependent. 2. Deconstruction: This involves critically examining the underlying assumptions and power dynamics behind a text or structure. Poststructuralists used deconstruction to uncover the biases and contradictions in dominant narratives. 3. Language as a social construct: Poststructuralists saw language as a social and cultural construct, which is shaped by power relationships and historical context. They argued that language is not a neutral or autonomous entity, but rather a tool used to reinforce social dominance. 4. Fragmentation and diversity: Poststructuralists celebrated diversity and fragmentation, arguing that knowledge and identities are multiple, complex, and context-dependent. They emphasized the importance of multiple narratives and perspectives. Key figures associated with poststructuralism include: 1. Jacques Derrida (France) 2. Michel Foucault (France) 3. Gilles Deleuze (France) 4. Jean Baudrillard (France) 5. Jean-François Lyotard (France) 6. Judith Butler (USA) 7. Walter Benjamin (Germany) Poststructuralism has had a significant impact on various fields, including: 1. Literary theory: Poststructuralism has influenced literary analysis, emphasizing the instability and complexity of texts. 2. Philosophy: Poststructuralism has challenged traditional notions of knowledge, reality, and truth. 3. Cultural studies: Poststructuralism has highlighted the importance of power relationships and cultural critique. 4. Social sciences: Poststructuralism has influenced research in sociology, anthropology, and history, emphasizing the importance of context and interpretation. In summary, poststructuralism is a broad intellectual movement that seeks to challenge dominant narratives, power structures, and knowledge claims, emphasizing the importance of diversity, complexity, and fragmentary understandings.

Postsurgical

Relating to a surgical operation or its aftermath.

Postsynaptic

Posttranslational

Posttraumatic

Postulant

A person asking for something, especially a spiritual favor or a job; a candidate or applicant, especially for a religious order or a vacancy in a higher education institution.

Postulants

Postulate

To put forward or assume something as a fact or basis for reasoning, often as a hypothesis or theory, especially in a formal or scientific context. For example: "The scientist postulated that the new technology would lead to a significant improvement in efficiency." In other words, a postulate is a statement that is accepted as true and assumed to be a starting point for further investigation or argument.

Postulated

Postulates

Noun 1. A statement or proposition put forward as a basis for thought or reasoning, especially in mathematics or philosophy; an assumption or hypothesis. Example: "The theory is based on the postulate that gravity is a fundamental force of nature."

Postulating

The word "postulating" is a verb that means: 1. To put forward or propose (an idea, theory, or hypothesis) for consideration or discussion. 2. To assume or infer (something) as a fact or solution without proof. 3. To propose or suggest (a candidate for a position or award) in a formal process. In general, postulating involves making an educated guess or proposal without having definitive proof, often in an attempt to explain or solve a problem or puzzle.