CAMPBELL BIOLOGY (18W)
12th Edition
ISBN: 9780136858256
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 21.3, Problem 3CC
WHAT IF? Ø What evolutionary processes might account for prokaryotes having smaller genomes than eukaryotes?
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(a) Explain why the term " junk dna" may not be such an accurate description?
(b) provide 1 similarity and 1 difference between the structure of individual genes of eukaroyotes and prokayotes
Multicellular organisms such as plants and animals belong to which domain?
Is the genome shown here from a prokaryote or a eukaryote?
Prokaryote
There is not enough information to decide
Eukaryote
Archaea
Chapter 21 Solutions
CAMPBELL BIOLOGY (18W)
Ch. 21.1 - Describe the whole-genome shotgun approach.Ch. 21.2 - Prob. 1CCCh. 21.2 - Explain the advantage of the systems biology...Ch. 21.2 - Prob. 3CCCh. 21.2 - MAKE CONNECTIONS In Concept 20.2, you learned...Ch. 21.3 - The best estimate is that the human genome...Ch. 21.3 - The Genomes Online Database (GOLD) Website of the...Ch. 21.3 - WHAT IF? What evolutionary processes might...Ch. 21.4 - Discuss the characteristics of mammalian genomes...Ch. 21.4 - VISUAL SKILLS Which of the three mechanisms...
Ch. 21.4 - Contrast the organizations of the rRNA gene family...Ch. 21.4 - MAKE CONNECTIONS Assign each DNA segment at the...Ch. 21.5 - Describe three examples of errors in cellular...Ch. 21.5 - Explain how multiple exons might have arisen in...Ch. 21.5 - What are three ways that transposable elements are...Ch. 21.5 - WHAT IF? In 2005, Icelandic scientists reported...Ch. 21.6 - Prob. 1CCCh. 21.6 - Prob. 2CCCh. 21.6 - Prob. 3CCCh. 21 - How did the Human Genome Project result in more...Ch. 21 - What has been the most significant finding of the...Ch. 21 - Compare genome size, gene number, and gene density...Ch. 21 - Explain how the function of transposable elements...Ch. 21 - How could chromosomal rearrangements lead to the...Ch. 21 - What type of Information can be obtained by...Ch. 21 - Bioinformatics intludes all of the following...Ch. 21 - Homeotic genes (A) encode transcription factors...Ch. 21 - Prob. 3TYUCh. 21 - DRAW IT Below are the amino acid sequences(using...Ch. 21 - EVOLUTION CONNECTION Genes important in the...Ch. 21 - scientific inquiry The scientists mapping the SNPs...Ch. 21 - Prob. 7TYUCh. 21 - SYNTHESIZE YOUR KNOWLEDGE Insects have three...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- . Which of the following prokaryotic kingdoms is characterized by the absence of a nucleus, the absence of histone proteins, the presence of fatty acids ester-linked to glycerol in their G-3-P cell membrane, and the presence of enzymes for constructing a peptidoglycan cell wall? kingdom Archaeobacteria kingdom Animalia kingdom Fungi kingdom Plantae kingdom Eubacteriaarrow_forwardGenetically speaking, prokaryotes are different from eukaryotes because: a. prokaryotes usually have one main circular chromosome, whereas eukaryotes have multiple linear chromosomes prokaryotes do not usually have histone proteins to package their DNA prokaryotes do not have a nucleus to house their DNA as eukaryotes do prokaryotes have less total DNA than do eukaryotes All of the abovearrow_forwardHello! Can you please explain why C is correct?arrow_forward
- Describe the hypothesized steps in the origin of eukaryotic cells.arrow_forward19arrow_forwardThe fact that we find histones in Eukarya and Archaea is most likely to indicate indicate what? O A. Histones evolved prior to Archaea and Eukarya branching off from Bacteria B. Histones evolved after Archaea and Eukarya branched off from Bacteria • C. Histones are found only in multicellular organisms • D. Histones are necessary to protect DNA from nucleases O E. Histones are a product of convergent evolutionarrow_forward
- You examine a population of dividing cells with an electron microscope, and you see a large, floppy, circular string near the center of the cell that seems to be tangled with another floppy circular string. Deducing that the strings are the replicating DNA of the cell, you determine that the cell is a(n) fertilized egg undergoing its first cell cleavage. O prokaryote undergoing mitosis. O yeast undergoing budding. O prokaryote undergoing binary fission. eukaryote in meiosis prophase I.arrow_forwardEukaryotic and prokaryotic ribosomes are similar in that: a. both contain a small subunit, but only eukaryotes contain a large subunit. b. both contain the same number of proteins. c. both use mRNA to assemble amino acids into proteins. d. both contain the same number of types of rRNA. e. both produce proteins that can pass through pores into the nucleus.arrow_forward1) Name and give a brief account of the theory that explains the evolution of Eukaryotic cells from Prokaryotic cells. 2) Explain the reactions that occur to form polysaccharides, using starch as an example. 3) What do enzymes do? What are their main structural features? Give an example of a biological enzyme. 4) Describe the structure of fats and lipids. Why are some solid at room temperature whereas others, particularly from plants, are liquid? Briefly describe the structure of an animal cell. What are the main differences between animal and plant cells? Briefly outline the steps involved in the synthesis of ATP in eukaryotic cellsarrow_forward
- . The endosymbiotic hypothesis for the origin of mitochondria from gram-negative prokaryotes is supported by all of the following lines of evidence except: A. the presence of enzymes for the Krebs cycle, electron transport, and oxidative phosphorylation the presence of mRNA, tRNA, and rRNA similar to that of the a-proteobacteria the presence of 80s ribosomes, consisting of 40s and 60s ribosomal subunits the presence of circular DNA resembling that of aerobic proteobacteria their use of binary fission rather than mitosis during cell divisionarrow_forwardDRAW IT Recent evidence indicates that the root ofthe eukaryotic tree may lie between a clade that includesunikonts and excavates, and all other eukaryotes. Drawthe tree suggested by this result.arrow_forwardScientists have discovered a new, unknown single-celled organism. They decide to compare the DNA sequence of the ubiquitin gene of the unknown organism with classified organisms. The ubiquitin gene is a gene found in some variation in all cells. Which organism shares the MOST recent common ancestor with the unknown organism? Question options: Yeast Green Algae Halophile Streptococcusarrow_forward
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