CN103310685A - Eukaryote chromosome mode structure teaching aid - Google Patents
Eukaryote chromosome mode structure teaching aid Download PDFInfo
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- CN103310685A CN103310685A CN2013102770088A CN201310277008A CN103310685A CN 103310685 A CN103310685 A CN 103310685A CN 2013102770088 A CN2013102770088 A CN 2013102770088A CN 201310277008 A CN201310277008 A CN 201310277008A CN 103310685 A CN103310685 A CN 103310685A
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- structure teaching
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Abstract
The invention discloses a eukaryote chromosome mode structure teaching aid which comprises an X-shaped box, a cover with one side fixedly connected on a body and a linear embedding body arranged in the box. The eukaryote chromosome mode structure teaching aid is simple in structure and capable of vividly expressing a mode structure of a chromosome.
Description
Technical field
The present invention relates to the teaching aid field, relate in particular to a kind of eukaryotic chromosome model structure teaching aid.
Background technology
Eukaryotic DNA height spiralization and present specific form when mitosis, this moment is easily painted by basic-dyeable fibre, is referred to as autosome.Chromosome contains vertically two chromatids arranged side by side after copying, only still be associated in together in the zone, centromere.Namely two chromatids are formed a chromosome.Every chromosome is made up of two chromatids, and middle stenosis is called the kinetochore, claims primary constriction again, and it is divided into galianconism (p) and long-armed (q) with chromosome.The end of chromosome arm exists a kind of structure that is called telomere, and it has the function that keeps the chromosome integrality.
Eukaryotic chromosome contains linear dsdna, and DNA and polytype related protein constitute chromosome.Chromosomal ultrastructure shows chromosome by diameter only the fiber of the DNA-histone height spiralization of 10 nanometers formed.The histone h1 of being combined with nucleosome is induced its ring that is assembled into 6 nucleosomes, and these rings are formed cylindric solenoid structure.
Eukaryotic chromosome can be by concentrating in various degree.Form the thread like body of hollow from chromosomal primary structure through spiralization, be called helical body or spiral pipe or karyophan or helical tube, this be chromosomal " secondary structure ", about 30 nanometers of its external diameter, internal diameter 10 nanometers, adjacent helix pitch are 11 nanometers.The helical body is further spiralization again, and forming diameter is the cylindrical body of 0.4 micron (μ m), is called super helical body.Here it is chromosomal " tertiary structure ".The further Foldble disk of super helical body around after, form chromatid-chromosomal " quaternary structure ".
In teaching field, normally by the picture form, but the picture form lacks stereoscopic sensation for chromosomal structured teaching, and is also not lively, is difficult to excite student's interest, can not well represent chromosomal specific structural features.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, chromosome model structure teaching aid that can well represent chromosome structure.
To achieve the above object of the invention, the technical solution used in the present invention is: a kind of eukaryotic chromosome model structure teaching aid, and it comprises the box body of " X " shape, a side is fixedly connected on the lid on the described box body, is arranged on the inlay of the wire in the described box body.
Optimized technical scheme, described lid and described box body are by the buckle folding.
Optimized technical scheme, described inlay comprise the spirality wire body, be connected the end body of described body one end, described end body comprises that again two connect described main body structure lines, evenly are arranged on string bar between described two root architecture lines, and described structure line twist.
Further technical scheme, described string bar is provided with two beading.
In the technique scheme, spiral body is soft line, can stressedly stretch; The structure line of end body also is soft line, can stressedly stretch.
Chromosomal primary structure forms the thread like body of hollow through spiralization, is called helical body or karyophan or helical tube or spiral pipe, this be chromosomal " secondary structure ", all spirals of each of helical body comprise 6 nucleosomes; The helical body is further spiralization again, forms super helical body, and Here it is chromosomal " tertiary structure "; The further Foldble disk of super helical body around after, form chromatid, chromosomal " quaternary structure "; Article two, chromatid is formed a chromosome.
In the technique scheme, described box body represents eukaryotic metaphase chromosome, and inlay represents the dna molecular in the chromatid, and the string bar represents base-pair, and beading represent base, and available different colours is represented dissimilar bases.
Because technique scheme is used, the present invention compared with prior art has following advantage:
The present invention is simple in structure, easy to use, the chromosomal structure of displaying that can not only be concrete and deepen the user for the memory of chromosome model structure by 3 D stereo mechanism.
Description of drawings
Fig. 1 is synoptic diagram of the present invention;
Fig. 2 is broken away view of the present invention.
Wherein: 1, box body; 2, lid; 3, inlay; 4, body; 5, string bar; 6, beading; 7, end body; 8, structure line.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment one:
As shown in Figure 1, 2, a kind of chromosome model structure teaching aid, it comprises that box body 1, one side of " X " shape is fixedly connected on the lid 2 on the box body 1, is arranged on the inlay 3 of the wire in the box body 2.
Lid 2 passes through the buckle folding with box body 1.
Inlay 3 comprise the spirality wire body 4, be connected the end body 7 of body 4 one ends, end body 7 comprises that again two connect the structure line 8 of bodies 4, evenly are arranged on the string bar 5 of 8 on two root architecture lines, structure line 8 twist.
String bar 5 is provided with two beading 6.
Beading 6 can be made red, blue, yellow, green 4 kinds of different colors, and each represents 4 kinds of base A, T, C, G in the chromosome, wherein A and T pairing, C and G pairing, and namely redness, blue beading 6 are on a string bar 5, and yellow, green beading 6 are on a string bar 5.
Box body 1 represents chromosome, box body 1 is " X " shape, be divided into left and right sides two parts from the centre, wherein left side and right-hand part respectively represent a chromosome monomer, the junction represents the centromere on the chromosome in the middle of left side and the right-hand part, inlay 3 represents the dna molecular in the chromatid, and string bar 5 represents base-pair.
Present embodiment is simple in structure, the chromosomal architectural feature of performance that can be vivid.
Claims (4)
1. eukaryotic chromosome model structure teaching aid, it is characterized in that: it comprises the box body of " X " shape, a side is fixedly connected on the lid on the described box body, is arranged on the inlay of the wire in the described box body.
2. a kind of chromosome model structure teaching aid according to claim 1 is characterized in that: described lid and described box body are by the buckle folding.
3. a kind of eukaryotic chromosome model structure teaching aid according to claim 1, it is characterized in that: described inlay comprise the spirality wire body, be connected the end body of described body one end, described end body comprises that again two connect described main body structure lines, evenly are arranged on string bar between described two root architecture lines, and described structure line twist.
4. a kind of eukaryotic chromosome model structure teaching aid according to claim 3, it is characterized in that: described string bar is provided with two beading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310277008.8A CN103310685B (en) | 2013-07-03 | 2013-07-03 | Eukaryote chromosome mode structure teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310277008.8A CN103310685B (en) | 2013-07-03 | 2013-07-03 | Eukaryote chromosome mode structure teaching aid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103310685A true CN103310685A (en) | 2013-09-18 |
| CN103310685B CN103310685B (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310277008.8A Expired - Fee Related CN103310685B (en) | 2013-07-03 | 2013-07-03 | Eukaryote chromosome mode structure teaching aid |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4031635A (en) * | 1975-04-14 | 1977-06-28 | Brandt Edward E | Manipulative chromosomal model |
| CN2065784U (en) * | 1989-08-23 | 1990-11-14 | 李跃君 | Combined teaching aid for chromosome |
| CN2104485U (en) * | 1991-06-04 | 1992-05-13 | 董鸣鸣 | Plant cell mitosis pursuits teaching aid |
| BR9100862A (en) * | 1991-02-27 | 1992-10-27 | Paulo Sergio Bretas De Almeida | THE CHROMOSOME GAME |
| CN2135176Y (en) * | 1992-06-27 | 1993-06-02 | 胡光杰 | Chromosome behavior demonstrator |
| CN2442346Y (en) * | 2000-09-08 | 2001-08-08 | 张小东 | Mitosis combined model of plant cell |
| CN2468114Y (en) * | 2001-03-03 | 2001-12-26 | 尤光明 | Chromosome variation demonstration modle during cell division |
| CN2874682Y (en) * | 2006-03-15 | 2007-02-28 | 叶小春 | Multifunction chromosome and DNA teaching aid |
| CN201829086U (en) * | 2010-10-29 | 2011-05-11 | 王子恒 | Chromosome behavior demonstration teaching aid for biology teaching |
| CN201910170U (en) * | 2010-12-01 | 2011-07-27 | 杜永鹃 | Chromosome model training aid in biological teaching |
| CN203325279U (en) * | 2013-07-03 | 2013-12-04 | 苏州大学 | Teaching aid for chromosome model structures of eukaryotic cell |
-
2013
- 2013-07-03 CN CN201310277008.8A patent/CN103310685B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4031635A (en) * | 1975-04-14 | 1977-06-28 | Brandt Edward E | Manipulative chromosomal model |
| CN2065784U (en) * | 1989-08-23 | 1990-11-14 | 李跃君 | Combined teaching aid for chromosome |
| BR9100862A (en) * | 1991-02-27 | 1992-10-27 | Paulo Sergio Bretas De Almeida | THE CHROMOSOME GAME |
| CN2104485U (en) * | 1991-06-04 | 1992-05-13 | 董鸣鸣 | Plant cell mitosis pursuits teaching aid |
| CN2135176Y (en) * | 1992-06-27 | 1993-06-02 | 胡光杰 | Chromosome behavior demonstrator |
| CN2442346Y (en) * | 2000-09-08 | 2001-08-08 | 张小东 | Mitosis combined model of plant cell |
| CN2468114Y (en) * | 2001-03-03 | 2001-12-26 | 尤光明 | Chromosome variation demonstration modle during cell division |
| CN2874682Y (en) * | 2006-03-15 | 2007-02-28 | 叶小春 | Multifunction chromosome and DNA teaching aid |
| CN201829086U (en) * | 2010-10-29 | 2011-05-11 | 王子恒 | Chromosome behavior demonstration teaching aid for biology teaching |
| CN201910170U (en) * | 2010-12-01 | 2011-07-27 | 杜永鹃 | Chromosome model training aid in biological teaching |
| CN203325279U (en) * | 2013-07-03 | 2013-12-04 | 苏州大学 | Teaching aid for chromosome model structures of eukaryotic cell |
Non-Patent Citations (1)
| Title |
|---|
| 王燕等: "关于"基因、DNA和染色体等空间结构关系演示仪"的研制", 《中国现代教育装备》, no. 2, 31 January 2013 (2013-01-31) * |
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| CN103310685B (en) | 2015-05-27 |
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