関連する実験動画

Updated: Jan 31, 2026

Dissection and Flat-mounting of the Threespine Stickleback Branchial Skeleton
08:02

Dissection and Flat-mounting of the Threespine Stickleback Branchial Skeleton

Published on: May 7, 2016

10.3K

骨盤の縮小の並行進化におけるDNAの脆弱性

Kathleen T Xie1,2,3, Guliang Wang4, Abbey C Thompson1,5

  • 1Department of Developmental Biology, Stanford University School of Medicine, Stanford, CA, USA.

Science (New York, N.Y.)
|January 5, 2019
PubMed
まとめ

魚の骨盤の喪失のような 繰り返された進化は,Pitx1遺伝子増強器の DNAの削除と関連しています. これらの消去は DNA 構造,TG リピート,複製方向によって引き起こされ,平行適応進化の洞察を提供している.

さらに関連する動画

Microinjection for Transgenesis and Genome Editing in Threespine Sticklebacks08:51

Microinjection for Transgenesis and Genome Editing in Threespine Sticklebacks

Published on: May 13, 2016

14.6K
DNA-based Fish Species Identification Protocol09:15

DNA-based Fish Species Identification Protocol

Published on: April 28, 2010

30.2K

関連する概念動画

Convergent Evolution01:54

Convergent Evolution

Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
32.8K
The Evidence for Evolution02:55

The Evidence for Evolution

Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
48.1K
Osmoregulation in Fishes02:32

Osmoregulation in Fishes

When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
53.1K
Oxidation-Reduction Reactions03:11

Oxidation-Reduction Reactions

Oxidation–Reduction Reactions
75.6K
Parallel Resonance01:23

Parallel Resonance

The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:
557
Parallel Processing01:20

Parallel Processing

The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
713