Texts: Biology 30 Lab Report
Name: Rutyush Patial
Partner: Laoabe
Date: 24-03-23
Lab Activity - Analysis of Monohybrid Crosses
Lab Introduction to Genetic Models Using Corn, Zea mays
When Mendel crossed peas, he found phenotypic ratios remarkably close to those predicted by his model of inheritance. However, remember that the laws of heredity (a genetic model) predict the probabilities of certain combinations of genetic traits occurring in offspring. In real unions of egg and sperm, we don't expect to see ratios that correspond exactly to the probabilities predicted by a model.
In this lab, we will work with probabilities of phenotypic classes in corn. The phenotypic classes we will examine are traits related to kernel shape and color. The color phenotype of maize (corn) kernels usually depends on the pigmentation of the aleurone (a layer of cells between the endosperm [central tissue] and the pericarp [seed coat] covering). If the color is colorless, then the kernel appears to be the color of the underlying endosperm.