3B Scientific - page 137

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9982-1005931
9982-1005087
9982-1005930
Exper iment s
Genet i cs
Population Genetics and Evolution
Collect and analyze data of readily observable genetic traits! Your students
will determine the phenotype, genotype and frequency of easily observed
human traits. Then they’ll identify the dominant and recessive genes for
each trait. With the class as a sample population, your students will use a
variety of taste test papers to determine the percentage of individuals who
can detect a unique taste. They’ll then apply the Hardy-Weinberg Principle
to calculate the allele frequencies for this trait and compare their class data
with an ideal population. In the second part of this lab investigation, your
students will use allele cards to model allele frequency change in an ideal
population, a population on which selection is acting, an example of hete-
rozygote advantage and as a result of genetic drift. The investigation in-
cludes detailed coverage of natural selection, the Hardy-Weinberg equation
and other related topics to better prepare your students for their exams.
Lab Activities Include: Estimating frequencies for a specific trait within a
sample population; case studies; eight lab stations.
Scope of delivery:
32 PTC paper, 160 cards printed with A, 160 Cards printed with a 8 plastic
coins, description in German and English.
30x23x6 cm; 1.5 kg
&
D/E
9982-1005931
Fruitfly Genetics
This unique kit contains simple activities designed to teach basic fruit fly
genetics without using live flies. Drosophila Melanogaster is used without
the inconvenience of maintaining live fruit fly cultures. Students can per-
form crosses using plastic pieces printed with features allowing them to
observe and simulate sex determination, single factor inheritance, double
factor inheritance, sex linkage, dominance and recessiveness.
Scope of delivery:
15 sheets each, with snap apart features showing male and female
and 4 types of fruit flies. Teacher’s Guide and Student instruction sheet
included.
35x22x2 cm; 0.1 kg
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D/E
9982-1005087
Genes and Probability
Study the patterns of inheritance and the genetic probability of easily
observed and tested traits.
Your students will:
• Apply the laws of chance to genetics
• Demonstrate the effect of dominance in a monohybrid cross
• Demonstrate the effect of incomplete dominance
• Model a dihybrid cross to demonstrate the law of independent
assortment
Scope of delivery:
40 coins, plastic, 20 cups, 40 dice, four-sided, 20 opaque discs, blue,
20 opaque discs, red, 20 transparent discs, blue, 20 transparent discs,
green, 20 transparent discs, yellow, 5 wax pencils, description in German
and English.
30x22x10 cm; 1 kg
&
D/E
9982-1005930
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