Chapter 21, Problem 3S

Summary Introduction

To draw:

The relationship between the beak depth of parents and offsprings in the Fig, 21.2 b “Evidence that natural selection alters beak shape in the medium ground finch, Geospiza fortis”, given that they have no genetic bases.

Introduction:

The phenotypic similarities seen between parents and offsprings are mostly because these traits are inheritable. However, this could be due to other external factors too like diet, habitat and more. Moreover, many a times the phenotypic traits of parents and offsprings could be dissimilar too.