Study Guide for Campbell Biology
Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 26, Problem 18TYK
Summary Introduction

Introduction: The phylogenetic tree is a branching diagram that shows the pattern of descent. The molecular phylogenetic analysis is used for mapping the tree of life.

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This video refers to Denisovans as a “Ghost Lineage.” In fact, Denisovans don’t even have a formal scientific name. What is the physical evidence that anthropologists need to further define and understand the Denisovans?   A. None of the above   B. A Type Specimen (and more Denisovan fossils)   C. Neanderthal DNA   D. H. sapiens DNA
Select the taxon that MOST CLOSELY applies to each of the statements below regarding anthropoids. Each term may be used once or not at all. Hominin genus with small head and oval birth canal. a. Homo sapiens + Species with a brain mass approximately three times larger than that of b. Homo heidelbergensis other extant hominins. c. Homo floresiensis * Species that comparative genomics suggests hybridized with Homo sapiens. d. Gigantopithecus e. Aegyptopithecus + Small-statured species found in Indonesia up to about 50,000 years ago. f. Homo neanderthalensis + Genus conjectured by some to have been responsible for the Yeti myth in southeast Asia. g. Homo h. Homo erectus i. Ardipithecus ramidus j. Proconsul k. Homo habilis 1. Australopithecus m. Australopithecus afarensis
Why can’t scientists just do DNA analysis on these fossil hominins to determine if they are a separate species and possibly what species they belong to?    A. The DNA of fossil hominins is too similar to modern humans, making it difficult to distinguish between them.   B. The technology for extracting DNA from fossils hasn't been developed yet.   C. The fossils would need to be in a -5 degree Celsius environment to prevent DNA from degrading   D. Scientists can't perform DNA analysis on fossil hominins because the fossils have been contaminated with modern human DNA over the years, making it impossible to isolate the ancient genetic material.
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Discovering the tree of life | California Academy of Sciences; Author: California Academy of Sciences;https://www.youtube.com/watch?v=AjvLQJ6PIiU;License: Standard Youtube License