LAB. EQUIPMENTS

HYGRADE GENETICS & MOLECULAR MODELS

HYGRADE Models are natural coloured,scientifically designed to give clear concept of the subject. These models are made of paper, machine plaster of paris and lined with iron material.

1..Typical plant cell under electron microscope - with ful details show-ing all contents.
2..Generalised plant cell - as seen under high power of microscope.
3..Typical chromosome - Details as seen under electron microscope.
4..Mitochondrion-
5..Mitosis Set of 10 Models - It consists of models of the following stages:
a) Resting Nucleus.
b) Prophase.
c) Late Prophase.
d) Metaphase.
e) Anaphase.
f) Late Anaphase.
g) Telophase.
h) Late Telophase.
i) Daughter cells.
j) A Detailed cells.

D.N.A. : SET (MODELS)

8..Watson-Crick - It consists of following 4 models. Price full set.
.a) Double Helicle Structure of D.N.A -It is ladder like twisted spir-raly to a double Helicle.
.b) Molecular Structures of DNA - It shows part of two sugar-phosphate chains connected to each other with nitrogenous base.
.c) Linking of Neocleotides - It is working model to show how Thymine links with Adenine and Cytosine with Guanine.
.d) Replicating of DNA - This model shows the mechanism of duplication.
 

STRUCTURE OF R.N.A MODEL

9..Structure of R.N.A - It include a set of following three model. Full set.
.a) Helicle Structure of RNA - It is ladder like,twisted spirally,Smae suggested by Watson and Crick.
.b) Linking of Nucleotides - It is a working model to show how Uracil links with Adeninne and Cytosine with Guanine.
.c) RNA Mechanism of Protein Synthesis - A very illustrative model explains different steps in the formation of protein and role of RNA with in a cell.
10..Showcase showing Mendel's dihybrid cross -Between a pure round-yellow seed pea plant and pure wrinkled and green pea plant.
11..Showcase showing low of Incomplete Dominance in adalusion fowl.
12..Showcase showing Crossing over (stern's) fully labelled.
13..Showcase showing Sexlinked inheritance in Poultry.
14..Showcase showing Origin and Kinds of Human twins.
 

HYGRADE BIOCHEMICAL MODELS

15..Meseison-Stabl's semiconservative mechanism for DNA replication - Showing that each of the two strands of parent molecule serve as a template for the synthesis of a new complementary stand.A very illustrative model in showcase.
16..MOdel showing Antibody reaction.
17..Model showing principle of active immunization - Showing antibodies formed before serious infection and ferformed antibodies which protect against serious infection.
18..Model showing transcription method - Obtaining a Gene from mRNA.
19..Model showing Antibody formation according to the Clonal selection model.
20..Models showing crossing over by pairing between complementary single stranded tails from Ds DNA molecules.
21..Meselson and Radding model showing mechanism of strand transfer- A greatly enlarged and illustrative model.
22..Structure of carbohydrates - This illustrates the structure of a monosaccharide (glucose) or simple sugar.Arranged in showcase.
23..Structure of a lipid - This clearly ,illustrates the formation of a fat molecule of fatty acids are joined to one molecule of glycerine with loss of three water molecules.
24.Protein Synthesis - By placing two of the amino -acid molecules to-gether , the hydrogen of the amino terminal of one acid joins with the hydroxyl of the carboxyl terminal of the other acid,forming water molecule which drops out and resulting grouping represents a peptide bond, and two amino-acids so joined form a dipeptide.
25.Model of chloride shift. - It shows the phenomenon of buffering effect of haemoglobin and the chloride shift.
26.Kreb's cycle - (Citric acid cycle)- This model shows that how 36 molecules of ATP are produced in the cycle and only two molecules ATP are formed in glycolysis.
27..Types of cell membranes - Set of three models on board .
28.Nucleus - Typical structure on board.
 

HYGRADE BOTANICAL MODELS

HYGRADE Models are true to nature with absolute exactitude and clearness. Models are made of plaster of paris and paper machie.
ALGAE
BM
1..Anabaena - A magnified filament showing akinetes,heterocyst.
2..Nostoc - filamentous colonies within the gelatinous matrix - set of three models.
3..Oscillatoria - Set of 2 models complete filament and cell structure.
4..Chlamydomonas - Cup like chloroplasts,embedded pyrenoid nucleus and other minute details.
5..Chlamydomonas LH - Set of 12 models fully labelled in showcase.
6..Volvox - Large globular colony composed of small vegetative cells.
7..Volvox LH - Set of 15 models fully labelled in showcase.
8..Eudorina LH - Detailed dev. stages during life cycle. Set of 12 mod-els.
9..Pandorina LH - Detailed dev. stages during life cycle. Set of 12 models.
10..Pediastrum - Coenobium and three stages of reproduction.
11..Hydrodictyon - A set of 8 models in showcase.
12..Ulothrix - Set of two models showing single filament with holdfast and detailed internal structure.

13..Ulothrix LH - Complete life history set of 15 models.
14..Coleochete LH - Complete life history Set of 13 fully labelled in show case.
15..Oedogodium - Single detailed structure on board.
16..Oedogodium LH - Showcase 12 stages in its life history in showcase.
17..Spirogyra - Model showing minutest cell details.
18..Spirogyra LH - Set of 12 models in showcase fully labelled.
19..Zygnema - Model showing the radiating chloroplast with nucleus.
20..Clostrium - Set of 3 stages in reproduction viz.
a)two cell pairing for conjugation.
b)two chloroplasts.
c)zygospore formation.
21..Vaucheria - (Set of 2) Showing branching in coenocytic body.
22..Vaucheria LH - Set of 13 models.
23..Botrydium - Structure showing minutest details.
24.a)Chara - Globule on stand.
24 b)Chara - Nucleus on stand.
25..Chara LH - A set of 14 models showing detailed structure.
26..Ectocarpus LH - All important stages set of 12 models.
27..Fucus LH - A set of 12 models.
28..Laminaria - Showing blade like body stipe and holdfast.
29..Diatoms - A model greatly enlarged.
30..Diatoms - Set of 6 in showcase showing different forms of diatoms and their structure.
31..Batrachospermum life cycle- A set of 11 models in show case.
32..Sargassum life cycle - A set of 14 models,in show case.
33..Dictyota life cycle - A set of 13 models.
34..Polysiphonia - A set of 3 models showing - Autheridia, Cystocarp,and Tetrasporic Branch.
35..Polysiphonia LH - A set of 12 models.