DNA double-helix structure dynamic demonstration instrument
A double-helix structure and demonstrator technology, applied in the field of teaching supplies, can solve the problem of no dynamic DNA double-helix structure demonstration device, etc., and achieve a good demonstration effect
Active Publication Date: 2020-05-08
LIAONING INST OF SCI & TECH
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[0004] The purpose of the embodiments of the present invention is to provide a dynamic DNA double helix structure demonstrator, which aims to solve the technical problem that there is no dynamic DNA double helix structure demonstrator in the prior art
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[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0022] The specific implementation of the present invention will be described in detail below in conjunction with specific embodiments.
[0023] Such as Figure 1~2 Shown is a structural diagram of a dynamic demonstrator of a DNA double helix structure provided by an embodiment of the present invention, including a base 1, a DNA double helix structure 7 and a power mechanism 5, and a bracket 2 is installed on the base 1; The DNA double helix structure 7 is connected between two connecting rods 4, wherein one of the connecting rods 4 is provided with a rotating shaft 3, and the other connecting rod...
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The invention is applicable to the technical field of teaching supplies, and provides a DNA double-helix structure dynamic demonstration instrument, which comprises a base, a DNA double-helix structure and a power mechanism. A support is installed on the base. The DNA double-helix structure is connected between two connecting rods, a rotating shaft is arranged on one connecting rod, and the otherconnecting rod is in sliding fit with the support. The power mechanism is connected with the rotating shaft and is used for driving the DNA double-helix structure to spirally rotate along the axis ofthe rotating shaft. The beneficial effects of the instrument are that: the DNA double-helix structure starts to move gradually from top to bottom until the top end of the DNA double-helix structure rotates to 360 degrees to achieve a double-helix structure, optimal conversion between a planar DNA double-helix structure and a three-dimensional DNA double-helix structure is achieved in the most direct mode, a good demonstration effect is achieved, a teacher can explain knowledge related to DNA to students more clearly, students can visually learn the knowledge related to DNA through DNA assembly, and students are helped to better learn and understand knowledge related to DNA.
Description
technical field [0001] The invention relates to a teaching article, in particular to a dynamic demonstrator of DNA double helix structure. Background technique [0002] The genetic information of most organisms in nature is stored in DNA. For the study of DNA, we have been going on and never stopped. However, in terms of teaching, "DNA double helix structure" has always been an important and difficult point in teaching. The DNA double helix structure presents an antiparallel double helix structure, which is composed of five carbon sugars, phosphate, and four bases, and they are connected by phosphodiester bonds and hydrogen bonds. [0003] At present, there is no dynamic DNA double helix structure demonstrator, and some are only simple solid models. It cannot vividly reflect the specific activities of DNA, which makes it difficult for students to understand. Contents of the invention [0004] The purpose of the embodiments of the present invention is to provide a dynam...
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Login to View More IPC IPC(8): G09B23/26G09B23/28
CPCG09B23/26G09B23/28
Inventor 黄志东杨志强王宇曹正欣
Owner LIAONING INST OF SCI & TECH