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 27, Problem 4IQ

a.

Summary Introduction

To determine: The bacterial group from which a chloroplast is likely to evolve.

Introduction: The two basic types of cells are eukaryotic and prokaryotic cells. Bacteria and archaea are considered as prokaryotes in terms of lacking membrane-bound organelles, internal membranous structures, and the cytoskeleton.

b.

Summary Introduction

To define: The term “metagenomics”.

Introduction: Prokaryotes have evolved approximately 3.5 billion years ago and extensively adapted to various structural and metabolic adaptations. Phylogeny is a diagrammatic hypothesis about the history of evolutionary relationship in a group of organisms.

Summary Introduction

To determine: The way by which metagenomics contributes to the prokaryotic phylogeny.

Introduction: The study of genetic materials recovered directly from the environmental samples is called metagenomics.

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Multicellular organisms with a true nucleus, histone proteins, ester-linked fatty acids in their cellmembranes, opisthokont ancestry, and chitin cell walls, are most likely to be:A. members of kingdom ArchaeobacteriaB. members of kingdom EubacteriaC. members of kingdom AnimaliaD. members of kingdom PlantaeE. members of kingdom Fung
The endosymbiotic hypothesis for the origin of chloroplasts from gram-negative prokaryotes is supported by all of the following lines of evidence except: the presence of enzymes for the light-dependent and the dark reactions of photosynthesis the presence of circular DNA resembling that of photosynthetic eubacteria the presence of mRNA, tRNA, and rRNA similar to that of the cyanobacteria their use of mitosis rather than binary fission during cell division the presence of 70s ribosomes, consisting of 30s and 50s ribosomal subunits
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