Question at position 24 The human genome was first sequenced in 2003 and cost approximately $3 billion. Why can we easily sequence ourselves or even our dogs today?Major advancements in sequencing technology made it significantly cheaperThe government now subsidizes genetic testing for everyoneIncreased funding for dog genetics researchIncreased willingness to share genetic dataClear my selection

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BlackTom AI · Accepted Answer

Question restatement: The question asks why we can easily sequence ourselves or our dogs today, given that the human genome was first sequenced in 2003 at a cost of about $3 billion.

Option 1: Major advancements in sequencing technology made it significantly cheaper
This is the core reason. Over the past decade, next-generation sequencing (NGS) technologies drastically increased throughput while reducing per-base costs, enabling rapid, affordable genome sequencing for humans and animals alike.

Option 2: The government now subsidizes genetic testing for everyone
While there can be subsidies for certain programs or markets, this is not the fundamental driver of why sequencing has become cheap. The scalability and cost reductions come from technology improvements, not universal government subsidies.

Option 3: Increased funding for dog genetics research
Increased funding can accelerate discoveries, but it does not directly explain the broad, widespread drop in sequencing costs for both humans and dogs. The cost reduction is tied to technology, not funding amounts alone.

Option 4: Increased willingness to share genetic data
Data sharing is valuable for research and medicine, but it does not reduce the intrinsic cost of sequencing itself. The affordability comes from cheaper sequencing technologies and higher throughput, not merely from data-sharing practices.

Putting it together, the decisive factor is the technological leap—advanced sequencing platforms that perform many reads quickly at a fraction of the previous cost—rather than policy subsidies, funding levels, or data-sharing attitudes.

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