DNA right-hand double helix structure three-dimensional teaching instrument

A double-helix structure and right-helix technology, applied in the field of teaching aids, can solve problems such as inconvenience for students to understand knowledge points, complex structure, and inability to show the structure of the right-hand double helix of DNA, so as to cultivate practical ability and thinking flexibility Effect

Pending Publication Date: 2019-03-26
王懿
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In biology teaching, the right-handed double helix structure of DNA is relatively abstract and difficult for students to grasp
In the prior art, the teaching aids for the DNA right-hand double helix structure are generally flat model demonstration boards, which can only show the principle of base pairing, but cannot show the structure of the DNA right-hand double helix
At the same time, the three-dimensional teaching aids for the DNA right-hand double helix structure in the prior art are complex in structure, and students cannot intuitively see the structural characteristics of the DNA right-hand double helix, which is not convenient for students to understand the knowledge points

Method used

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  • DNA right-hand double helix structure three-dimensional teaching instrument
  • DNA right-hand double helix structure three-dimensional teaching instrument
  • DNA right-hand double helix structure three-dimensional teaching instrument

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] like figure 1 , 2 , a kind of DNA right hand double helix structure three-dimensional teaching aid shown in 3, comprises polydeoxynucleotide chain A model 1, polydeoxynucleotide chain B model 3, polydeoxynucleotide chain A model 1 is made of deoxynucleotide Ribose group A model 7 and phosphate group A model 6 are sequentially spliced ​​to the right helix, and polydeoxynucleotide chain B model 3 is spliced ​​by deoxyribose group B model 8 and phosphate group B model 9 to the right helix in sequence into; polydeoxynucleotide chain A model 1 is connected with hydrogen bond A model 5 perpendicular to the horizontal plane, and polydeoxynucleotide chain B model 3 is connected with hydrogen bond perpendicular to the horizontal plane model B 4; deoxyribose Base A model 7 and deoxyribose base B model 8 are connected through base pair model 2; DNA right-handed double he...

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Abstract

The invention discloses a DNA right-hand double helix structure three-dimensional teaching instrument. The teaching instrument comprises a polydeoxynucleotide chain A model and a polydeoxynucleotide chain B model, wherein the polydeoxynucleotide chain A model is formed by the rightward spirally lifting assembling of deoxyribose A models and phosphate A models, and the polydeoxynucleotide chain B model is formed by the rightward spirally lifting assembling of deoxyribose B models and phosphate B models; the polydeoxynucleotide chain A model is connected with hydrogen bond A models which are perpendicular to the horizontal plane, and the polydeoxynucleotide chain B model is connected with hydrogen bond B models which are perpendicular to the horizontal plane; the deoxyribose A models and thedeoxyribose B models are connected through base pair models. The teaching instrument is a three-dimensional structure which is assembled by each model, and the DNA right-hand double helix spatial construction is vividly presented to help students to understand DNA right-hand double helix.

Description

technical field [0001] The invention relates to a teaching aid, in particular to a three-dimensional teaching aid with a DNA right-handed double helix structure. Background technique [0002] In biology teaching, the right-hand double helix structure of DNA is relatively abstract and difficult for students to grasp. In the prior art, the teaching aid of the DNA right-hand double helix structure is generally a planar model demonstration board, which can only show the principle of base pairing, but cannot show the structure of the DNA right-hand double helix. At the same time, the three-dimensional teaching aids for the DNA right-hand double helix structure in the prior art are complex in structure, and students cannot intuitively see the structural characteristics of the DNA right-hand double helix, which is not convenient for students to understand the knowledge points. Contents of the invention [0003] The technical problem to be solved by the present invention is to pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/26
CPCG09B23/26
Inventor 王懿
Owner 王懿
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