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India’s AMCA Programme Takes Flight: A Stealth Leap into the Future of Air Combat

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In a major leap toward self-reliance in defense technology, India is set to develop its very own fifth-generation fighter jet—the Advanced Medium Combat Aircraft (AMCA) . In a historic move, Defence Minister Rajnath Singh has approved an innovative execution model for the indigenous stealth fighter programme. This model brings together Hindustan Aeronautics Limited (HAL) and private industry players in a competitive framework, marking a significant shift in how India approaches military aviation manufacturing. This bold initiative comes at a critical time, as China has already fielded two fifth-generation fighters , and reports indicate it will supply 40 J-35 stealth jets to Pakistan . Against this backdrop, fast-tracking the AMCA has become an urgent national security imperative. AMCA: India’s Indigenous Stealth Fighter Dream The AMCA project , spearheaded by the Aeronautical Development Agency (ADA) under the Defence Research and Development Organisation (DRDO) , received its l...

Selective Silencing: Impact on Genetic Expression and Disease Outcomes

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Selective Silencing: Understanding Its Role in Disease Outcomes and Genetic Expression

Researchers at Columbia University have revealed the fascinating concept of selective silencing and its potential impact on disease outcomes. This process involves the selective inactivation of one copy of a gene inherited from one parent, which can influence genetic expression and potentially affect disease susceptibility. Here's a detailed explanation:

1. Understanding Selective Silencing

  • Gene Copies in Cells: Every cell in the body (except sperm and eggs) contains two copies of each gene, inherited from both parents.
  • Selective Inactivation: In some cells, one of the copies of a gene is selectively silenced, meaning it is blocked from expressing its genetic message. This selective silencing can affect how genes function and influence an individual's overall health.

2. Significance of Selective Silencing

  • Blocking Gene Messages: Silencing refers to the process of preventing a gene from sending its message, essentially turning off one parent’s version of the gene.
  • Impact on Disease: This process could explain why some individuals who carry disease-linked genes do not show symptoms. The silencing of one parent’s gene copy might prevent the expression of a disease-causing mutation, keeping the individual symptom-free despite carrying the genetic predisposition.

3. Potential Implications for Health

  • Understanding selective silencing could lead to new insights into genetic diseases, their expression, and potential treatments. It may also provide clues as to why certain genetic diseases remain dormant or asymptomatic in some carriers.

Selective Silencing is an emerging concept with profound implications for genetics, disease management, and healthcare, offering a new avenue for understanding and treating genetic disorders.

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