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Key Finding In Y Chromosome


Recently, researchers have discovered that the Y chromosome possesses genes linked to ageing and lifespan regulation.


GS III: Science

Dimensions of the Article:

  1. Key findings in recent research related to the Y chromosome
  2. About Chromosomes

Key findings in recent research related to the Y chromosome

  • Essential Genes: Scientists have identified that the Y chromosome contains genes that play crucial roles in various biological functions. These genes are particularly associated with ageing and the regulation of lifespan.
  • Neanderthal Genome: Analysis of the genome sequences of Neanderthals, an extinct human relative, has revealed indications of the replacement of the Y chromosome by modern humans. This suggests that genetic changes in the Y chromosome occurred during the evolution of modern humans.
  • Future Role: The findings suggest that the Y chromosome may lose its status as the primary determinant of maleness in the future. This implies that other chromosomes may take on significant roles in determining male characteristics.

About Chromosomes:

  • Thread-like structures located inside the nucleus of animal and plant cells.
  • Composed of protein and a single molecule of DNA (deoxyribonucleic acid).
  • Inherited from parents and passed on to offspring.
Function and Importance
  • DNA within chromosomes contains specific instructions that make each living organism unique.
  • Plays a crucial role in determining an individual’s traits, characteristics, and biological functions.
Human Chromosomes
  • Humans have 22 pairs of autosomes (non-sex chromosomes) and one pair of sex chromosomes.
  • Sex chromosomes are designated as X and Y.
  • All biological males have one X and one Y chromosome.
  • All biological females have two X chromosomes.
Role of the Y Chromosome
  • The Y chromosome, known as the “master of maleness,” determines biological male sex.
  • Carries genes that play a role in sex determination.
  • Traditionally considered the primary factor in determining maleness.

-Source: The Hindu

December 2023