Featured in PASCO’s College Biology Instructor Guide
College Instructor edition with 26 experiments covering introductory and general biology topics.
Genetics of Organisms
Use the common fruit fly, Drosophila melanogaster, to create and statistically analyze genetic crosses.
This lab allows students to use the common fruit fly, Drosophila melanogaster, to perform genetic (monohybrid, dihybrid, and sex-linked) crosses. This lab provides an excellent opportunity to work with and manipulate live organisms in a laboratory setting. During this investigation, students explore:
- The relationship between the genotype and phenotype of wild-type and mutant fruit flies.
- The relationship between F1 and F2 generations in monohybrid, dihybrid, and sex-linked crosses.
- The life-cycle of a metamorphosing insect.
- Statistical analysis of genetic crosses.
Students gain experience conducting the following procedures:
- Culturing and anesthetizing fruit flies.
- Determining the sex of fruit flies.
- Observing phenotype of wild-type and mutant fruit flies.
- Statistically analyzing results using the chi-square test.
Sensors / Equipment Used:
USB connected and powered for experiments in the classroom or the field.
Culture vial label or labeling tape
Index cards - 2
Instant Drosophila culturing medium - 1 to 2 g
Mutant flies (autosomal monohybrid F1 cross) - 1 vial per class
Mutant flies (autosomal recessive dihybrid F1 cross) - 1 vial per class
Mutant flies (sex-linked F1 cross) - 1 vial per class
Small, thin, camel hair paint brush
Wild type flies - 3 vials per class
The Associated Bundle:
A complete probeware bundle designed for PASCO's College Biology curriculum