Biology teaching and research device

Abstract

The invention provides a biology teaching and research device which comprises two rods and a plurality of basic group models. The two rods are arranged in a DNA (deoxyribonucleic acid) double-helix manner, two ends of each basic group model are connected on the two rods, the basic group models are parallelly arranged along the axis directions of the rods, the rods comprise metal shaping hoses, soft rubber bars are connected in the metal shaping hoses in a sleeved manner, elastic metal wires are arranged in the soft rubber bars, each basic group model comprises clamping parts and a model rod, the clamping parts are positioned at two ends of each basic group model, the model rod is positioned in the middle of each basic group model, the two clamping parts and two rods are clamped in a one-to-one correspondence manner, two ends of each model rod are in one-to-one correspondence to the two corresponding clamping parts and detachably connected with the two clamping parts, each model rod comprises two detachably connected sub models, and basic markers are arranged on sub models. According to the biology teaching and research device, the basic group models can be disassembled, the basic group models and the two double-helix rods can be disassembled, DNA models are disassembled and assembled by learners in the use process, and learning effects are improved.

Description

technical field [0001] The invention relates to biological technology, in particular to a biological teaching and research device. Background technique [0002] In biological research and teaching places, especially in high school biology teaching, DNA (deoxynucleotide) models are better tools for popularizing knowledge, which can show learners the specific composition of DNA in a more intuitive and three-dimensional way. [0003] The authorized announcement number is CN 204375306 U, the applicant is Zhang Deli, and the utility model patent named "A DNA Double Helix Structure Model for Biology Teaching" provides a teaching tool, which uses a hard plastic box, and the hard plastic box. Thin iron wires connected with plastic square frames, spherical plastic sheets connected with the thin iron wires, pentagonal plastic sheets connected with the spherical plastic sheets, rectangular plastic sheets connected with the pentagonal plastic sheets, etc. Although the model can display...

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Problems solved by technology

[0003] The authorized announcement number is CN 204375306 U, the applicant is Zhang Deli, and the utility model patent named "A DNA Double Helix Structure Model for Biology Teaching" provides a teaching tool, which uses a hard plastic box, and the hard plastic box. Thin iron wires connected with plastic square frames, spherical plastic sheets connected with the thin iron wires, pentagonal plastic sheets connected with the spherical plastic sheets, rectangular plastic sheets connected with the pentagonal plastic sheets, etc. The model, although it can display the double helix structure, but the structure is relatively thin, and students cannot actually operate it

The authorized announcement number is CN 2793851 Y, the applicant is Xia Cong, and the utility model patent titled "A DNA Double Helix Structure" is formed by connecting hard plastic sheets, iron wires, and rings to form a double helix structure. Similarly, its The structure is relatively thin, and the learners cannot actually operate

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