BIOLOGY
BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 23.1, Problem 2LO
Summary Introduction

To determine: The reason that phenotypic similarity does not indicate the close evolutionary relationships always.

Introduction: The phenotypic similarity is the easily observable similarity. The genetic content of an individual is responsible for the phenotypic characteristics.

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Match the terms to their descriptors. NOTE: If you want to change your selection, you'll need to delete the one you already chose. After you delete it, the list of choices will pop back up and you can make a different choice. Two species evolve in different directions from a common starting point Divergent evolution Two species independently evolve similar structures Homologous structures Traits that look similar but were not inherited from a common Convergent evolution ancestor Analogous structures Traits that are similar because they were inherited from a common ancestor
Explain the role of genetic drift in shaping the genetic landscape of populations. Compare and contrast genetic drift with other evolutionary forces, such as natural selection, highlighting their respective contributions to population genetic variation.
Molecular marker is used to determine relatedness of species which may directly or indirectly exerts an effect on diversity. A hypothetical ancestor has the following DNA sequences: G A A G C T A T T C A T T. There are two lineage with DNA sequences of G A A G G T A T T C T C G, and G A A C C T A T T C T G C. (1) Determine the percentage of A and T in the DNA sequence of the hypothetical ancestor.  (2) Calculate the percentage of each nitrogenous base in the second lineage.
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