Genetics Bundle 2
Genetics: Mendelian Concepts Simulation: This activity allows students to collect data that show similar patterns to those Mendel discovered. Using specially designed equipment, students “rediscover” the principles of genetics. The unique materials produce random genotype combinations that are statistically consistent with those found when studying living organisms.
Investigating Selective Breeding: In this series of two activities students explore inherited traits. They use Lab-Aids simulated corn ears and Punnett squares to gather data on, interpret, and predict the probability of traits being passed from parent to offspring. They then read about “survival of the fittest,” natural selection, selective breeding, and the relationships between these concepts.
Heredity and Environment: By germinating hybrid tobacco seeds first in darkness and then in light, students make interesting observations using this challenging kit.
- Students set up controlled experiments that provide mathematical data to test their theoretical genetic hypothesis about heredity and the factors determined by the environment.
- They see how a recessive trait becomes evident.
- Students also germinate the hybrid tobacco seeds with one normal and one albino gene.
- Stimulate shoot production.
- Examine the relationship of the dominant gene (chlorophyll production) to the recessive gene.
- Make conclusions concerning the genotype relevant to a visible phenotype.
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Details at a Glance
- 5-6 Days | 5-6 ~50 minute class periods
- 6 Activities
- Accommodates unlimited, unlimited, 1 classes, each with 39 groups of 9 students
- Meets our criteria for supporting literacy
- All materials are non-consumable
- Includes digital resources
Scientific Concepts
•Traits are influenced by alleles located on chromosomes.
•Each organism has sets of paired alleles (genotype) that help determine its physical traits (phenotype.)
•Alleles come in two versions (often represented with upper- and lower-case letters) and genotypes can be homozygous (e.g. XX or xx) or heterozygous (e.g. Xx).
•Each offspring gets one allele randomly from each parent.
•Every organism requires a set of instructions for specifying its traits. Heredity is the passage of these instructions from one generation to another.
•The characteristics of an organism can be described in terms of a combination of traits. Some traits are inherited and others result from interactions with the environment.
•Understanding basic concepts and principles of science and technology should precede active debate about the economics, policies, politics, and ethics of various science- and technology-related challenges.
•Humans have a major effect on other species.
•Discover which is more important: Heredity or Environment
•Controlled experiment provides mathematical data to test hypotheses
•Discover how a recessive trait becomes evident
•Examine the relationship of a dominant gene to the recessive gene and draw conclusion concerning the genotype relevant to a visible phenotype
KEY VOCABULARY: Alleles, Chromosomes, Deoxyribose nucleic acid (DNA), Dihybrid, Dominant, Genotype, Incomplete dominance, Inherited, Phenotype, Recessive, allele, dominant, gene, genetic engineer, genotype, heterozygpous, homozygous, natural selection, Punnett square, phenotype, recessive, selective breeding, survival of the fittest, trait,
Guides & Student Sheets
Our kits and modules provide you with everything you need so you can open, review, and teach the material confidently the next day.
- Full downloadable Teacher Guide with background information, detailed instruction, example data and answers
- Downloadable Student Sheets with age appropriate background information, full procedure(s), and analysis questions
- All materials necessary to carry out the investigation
- Safety Data Sheets