
"The Evolution of STEM earns its Recommended BrickScore of 72.8 as a visually rich, mechanically interesting display set with genuine educational appeal, and owners rate it 4.51 out of 5; the DNA chirality debate and a size smaller than some expected are the main caveats at $79.99."
The Evolution of STEM (21355) earned a Recommended BrickScore of 72.8 with moderate expert agreement, reflecting a set that owners and buyers largely love but that generated some substantive debate around accuracy and value. Owner ratings are strong at 4.51 out of 5 across 104 reviews, with a 4.44 value-for-money signal, though only 48% would recommend it on LEGO.com, a figure that seems tied to specific criticisms around the DNA helix chirality controversy and a size that some found smaller than expected. At $79.99 for 879 pieces ($0.091 per piece), the price-per-piece is competitive, and the set's combination of educational content, moving mechanisms, and display-oriented micro-builds attracted consistent praise.
Where they split: The DNA chirality debate is the main point of divergence. Some owners with molecular biology backgrounds criticized the left-handed helix as an error; others cited Z-DNA as a valid naturally occurring form and defended the design. LEGO has not publicly addressed the distinction, leaving the debate unresolved among buyers.



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"I totally love it! This set checks almost all the boxes for me."
Rebrickable Reviews
"It's a really enjoyable set, filled with educational knowledge and history and the big drawcard will be the 3 minifigures included – Marie Skłodowska-Curie, George Washington Carver and Sir Isaac Newton, three pioneers a…"
Jay's Brick Blog
"I find it intriguing that it's really Bradley's concept that won the Ideas contest to make this a model, rather than his actual build."
The Brothers Brick"For me personally, this is a weird product."
Tiago Catarino
"I totally love it! This set checks almost all the boxes for me."

"It's a really enjoyable set, filled with educational knowledge and history and the big drawcard will be the 3 minifigures included – Marie Skłodowska-Curie, George Washington Carver and Sir Isaac Newton, three pioneers and icons of Science."

"I find it intriguing that it's really Bradley's concept that won the Ideas contest to make this a model, rather than his actual build."
"For me personally, this is a weird product."



STEM-inclined owners find this set a uniquely educational and detail-packed display piece, though a subset of scientists take issue with the left-handed DNA helix, and a few note structural fragility during the build.
LEGO.com4.6
Amazon4.2