3B Scientific - page 142

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9982-1005297
9982-1005298
9982-1005295
9982-1005300
9982-1005296
3 B S c i e n t i f i c ® B i o l o g y
Chemi ca l Pr inc ipl es
S t ruc ture & Func t ion of DNA
This right handed double helix self assembly kit with 12/22 (1/2 turns) base
pairs can be used to model DNA REPLICATION and complementary base
pairing. It contains colour coded parts to represent the nitrogenous bases,
pentose sugars and phosphate components that make up DNA. Special
features:
• Connected by 2 and 3 Hydrogen bonds for Thymine/Adenine and
Cytosine/Guanine respectively
• Clearly demonstrating the major and minor grooves
• Differently sized pyrimidines to purines
Delivered with instructions and stand.
Advanced miniDNA™ (22 layer)
Contents: 11 Thymine (orange), 11 Adenine (blue), 11 Guanine (green),
11 Cytosine (yellow), 44 Deoxyribose (red), 44 Phosphate (purple).
17x23.5x6 cm; 0.7 kg
9982-1005297
Advanced miniDNA™ (12 layer)
Contents: 6 Thymine (orange), 6 Adenine (blue), 6 Guanine (green),
6 Cytosine (yellow), 24 Deoxyribose (red), 24 Phosphate (purple)
17x23.5x3 cm; 0.5 kg
9982-1005298
miniDNA™ 12 Layer Molecular
Model
The miniDNA™ system comprises
abstract shaped colour coded parts
to represent the nitrogenous bases,
pentagonal sugar and pyramidal
phosphate parts required to make
the Double helix model of DNA.
Contents:
6 Thymine (orange)
6 Adenine (blue)
6 Guanine (green)
6 Cytosine (yellow)
24 Deoxyribose (red)
24 Phosphate (purple)
Supplied with assembly instruc-
tions and its own stand. Packed in
a plastic box.
24 cm; diam. 11 cm
&
E
9982-1005295
miniDNA™ 22 Layer Molecular
Model
The miniDNA™ system comprises
abstract shaped colour coded parts
to represent the nitrogenous bases,
pentagonal sugar and pyramidal
phosphate parts required to make
the Double helix model of DNA.
Contents:
11 Thymine (orange)
11 Adenine (blue)
11 Guanine (green)
11 Cytosine (yellow)
44 Deoxyribose (red)
44 Phosphate (purple)
Supplied with assembly instruc-
tions and its own stand. Packed in
a plastic box.
44 cm; diam 11 cm
&
E
9982-1005296
DNA Double Helix Structure Model
• When assembled, students can understand the basic structure of DNA.
• By assembling the model, students will understand the biological terms.
• Easy to assemble and disassemble and can even be used as a decorative
model
• The model is grouped by 6 colours
• One can observe the complete product by spinning the model.
• Deoxyribose and 4 bases (A:Adenine, G:Guanine, C:Cytosine and
T:Thymine) model types are properly used.
• The description of colours and symbols of sugar, phosphoric acid and
4 bases are well defined and distinguished.
• Size of the purine base (Adenine, Guanine) and the pyrimidine base
(Cytosine, Thymine) are different.
• Assembled bases pairs (Adenine – Thymine, Guanine – Cytosine)
are well defined.
• In one turn of the DNA, 10 pairs of base are seen.
Size 12.5x35 cm
9982-1005300
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