Page 160 - Demo

Cells and Genetics
Cells and Genetics—Genetics Supplies
Taste Test Papers
Used to test the inherited ability to taste various compounds. Popular in the study of human genetics, Mendelian genetics, and family pedigrees. Tests are harmless and easy to interpret. All are supplied in vials of one hundred 2" x 1⁄4" strips.
Albino Tobacco Seeds
Easy to germinate and easy to grow. These classic genetic seeds display a Mendelian 3:1 ratio. Germinate them in Petri dishes and compare the phenotypic results in the light versus the dark. Can the genetics be altered? Reversing the seed locations will provide an answer for students. Approximately 800–1,000 seeds in 0.1-g sample.
Corn, Segregating Ears
These are single full-size ears of corn from plants specially bred to demonstrate Mendelian probability ratios and fundamentals of heredity. Kernels are numerous enough to give results close to theoretical ratios, yet students will learn that those ratios are predictive and numerical variations are natural. One of the cleanest, simplest and least time- consuming ways to introduce basic principles of heredity.
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Catalog No.
Description
Price
Per Vial
12 Vials
AP7989
PTC (phenylthiocarbamide). Used to test for the genetic ability to experience a bitter taste from PTC.
$2.30
$26.28
AP7891
Sodium Benzoate Taste Test. Used to test for genetic ability to taste sodium benzoate.
2.00
22.80
AP7892
Thiourea Taste Test. Used to test for genetic ability to experience a bitter taste from thiourea.
2.00
22.80
AP7990
Control Taste Paper. Used as an untreated control for taste tests with PTC, sodium benzoate, and thiourea.
1.20
14.04
Taste Test Papers AP7989, etc.
Catalog No.
Description
Price/Each
FB1165
Albino Tobacco Seeds
$12.10
Corn, Segregating Seeds
These are viable seeds for germination. Seedlings developing from these seeds will demonstrate the phenotypic ratios described. Color characteristics are often indistinct initially and may require a few days to develop fully. Seeds are packaged in envelopes of 100 and germina- tion rate should exceed 90 percent.
Corn, Segregating Ears AB1443, etc.
Albino Tobacco Seeds FB1165
Catalog No.
Description
Price/Each
AB1443
3 Purple: 1 White. Monohybrid. F2 ear resulting from a paren- tal cross between a homozygous dominant (purple) plant and a homozygous recessive (white) plant.
$13.65
AB1444
1 Purple: 1 White. Monohybrid. Product of a test cross between an F1 hybrid and the homozygous recessive (white) parent.
13.65
AB1445
9 Purple Dent: 3 White Dent: 3 Purple Sweet: 1 White Sweet Dihybrid. To demonstrate the assortment of two independent characteristics. F2 generation resulting from a parental cross between a plant homozygous dominant for both alleles and a plant homozygous recessive for both alleles.
13.60
AB1446
1 Purple Dent: 1 White Dent: 1 Purple Sweet: 1 White Sweet Dihybrid. To demonstrate the assortment of two indepen- dent characteristics. Product of a test cross between an F1 hybrid—heterozygous for both alleles—and the homozygous recessive (white, sweet) parent.
13.65
Catalog No.
Description
Price/Each
AB1447
3 Normal Green: 1 Albino. Monohybrid. F2 seeds resulting from a parental cross between a homozygous dominant (green) plant and a homozygous recessive (albino) plant.
$14.20
AB1448
1 Normal Tall: 1 Dwarf. Monohybrid. Seeds resulting from a test cross between an F1 hybrid and a homozygous recessive (dwarf) parent (P1).
13.80
AB1449
3 Normal Tall: 1 Dwarf. Monohybrid. F2 seeds resulting from a parental cross between a homozygous dominant (tall) and a homozygous recessive (dwarf) plant.
13.80
AB1450
9 Tall Green: 3 Tall Albino: 3 Dwarf Green: 1 Dwarf Albino. Dihybrid. To demonstrate the assortment of two independent characteristics. F2 seeds resulting from a parental cross between a plant homozygous for both dominant genes and one homozygous for both recessive genes.
16.15
Corn, Segregating Seeds AB1447, etc.