BIOLOGY:CONCEPTS+INVEST.-CONNECT ACCESS
5th Edition
ISBN: 9781260542233
Author: Hoefnagels
Publisher: MCG
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Chapter 13.6, Problem 2MC
Summary Introduction
To determine:
What is an advantage of using
Concept introduction:
Mitochondrial DNA or
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Chapter 13 Solutions
BIOLOGY:CONCEPTS+INVEST.-CONNECT ACCESS
Ch. 13.1 - What is the geologic timescale?Ch. 13.1 - What types of information provide the clues that...Ch. 13.2 - What are some of the ways that fossils form?Ch. 13.2 - Why will the fossil record always be incomplete?Ch. 13.2 - Prob. 3MCCh. 13.2 - Distinguish between relative and absolute dating...Ch. 13.2 - How does radiometric dating work?Ch. 13.3 - How have the positions of Earths continents...Ch. 13.3 - Prob. 2MCCh. 13.4 - What can homologous structures reveal about...
Ch. 13.4 - What is a vestigial structure? What are some...Ch. 13.4 - What is convergent evolution?Ch. 13.5 - How does the study of embryonic development reveal...Ch. 13.5 - Prob. 2MCCh. 13.6 - How does analysis of DNA and proteins support...Ch. 13.6 - Prob. 2MCCh. 13.6 - How can molecular clocks help determine when two...Ch. 13.7 - How might the ability to crawl on land for short...Ch. 13.7 - Prob. 2MCCh. 13 - You discover that a 24,000-year-old fossil has one...Ch. 13 - In fossils found in deeper layers of the Earth,...Ch. 13 - Prob. 3MCQCh. 13 - Ground beetles (Carabus solieri) have useless hind...Ch. 13 - Prob. 5MCQCh. 13 - Prob. 6MCQCh. 13 - Explain the significance of the geologic timescale...Ch. 13 - Prob. 2WIOCh. 13 - Describe six types of fossils and how they form....Ch. 13 - The bubonic plague swept through western Europe in...Ch. 13 - Index fossils represent organisms that were...Ch. 13 - Prob. 6WIOCh. 13 - Prob. 7WIOCh. 13 - Prob. 8WIOCh. 13 - How do biologists use sequences of proteins and...Ch. 13 - Prob. 10WIOCh. 13 - Figure 13.25 Pull It Together: Evidence of...Ch. 13 - Prob. 2PITCh. 13 - Refer to figure 13.25 and the chapter content to...
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- The genome relatedness of different organisms can be shown with a phylogenetic tree constructed based on DNA sequence. (1) Why DNA sequences could be used to deduce genome relationship? (2) What else may be used to suggest the relatedness of different genomes?arrow_forwardHow did Spiegelman et al.' s experiments in 1967 & 1970 on the origins of natural selection provide evidence for natural selection in an RNA-based world? A) The starting RNA strand was originally ~4,000 nucleotides; after several serial transfers it was reduced to ~200 nucleotides as a result of faster replication of shorter sequences being advantageous and selected for. B) The starting RNA strand was originally ~4,000; after several serial transfers and the introduction of additional RNA molecules it increased to ~20,000 nucleotides as a result of hybridization with the longer RNA molecules having outcompeted shorter RNA strands. C) The RNA remained at approximately is original sequence of ~4,000 nucleotides, demonstrating fitness in a stable environment. D) These experiments did not demonstrate natural selection.arrow_forwardWhat are the four processes that lead to the evolution of new genes from a single ancestral gene?arrow_forward
- Why is our gene annotation important? a) Gene annotation done by real people is more accurate than if done by computer algorithm. b) Gene annotation creates a 'map' of the parts of a gene. c) Gene annotation allows us to compare gene structure between species to learn about how genes evolved. d) All of the abovearrow_forwardHow would sequencing the entire genome of an organism help scientists to understand how that organismfunctioned?arrow_forwardYou want to make a phylogenetic tree of a group of three related species of lizards that live on an island. Their genome sequences are highly similar except for a gene that controls body size. In that region of the genome, one of the lizard species has one copy of the growth control gene (L1), the second species has a duplication of the growth control gene (L2) and the third species has three copies of the same gene (L3). The lizard species show an increase in size depending on how many copies of the growth control gene they have (L1 is smallest, L2 is medium-sized and L3 is largest). Is this enough information to determine the phylogenetic relationships between the species, and predict which of the species arrived on the island first (and is the ancestral species)? Yes, because the ancestral lizard genome probably had a single copy of the growth control gene and after arriving on the island it was duplicated, resulting in species L2, and then another duplication occurred resulting in…arrow_forward
- 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.arrow_forwardWhat is "homology"? What is BLAST and how is it used? What’s a major assumption when drawing evolutionary relationships between organisms based onDNA sequences?arrow_forwardHumans and chimpanzees share about 98% of their DNA. What is DNA? What might be the role of regulatory genes in producing the anatomical differences between these two lineages? Give two examples of how the field of genetics has revolutionized biological science. What is polymerase chain reaction (PCR) and why is it important in genetics?arrow_forward
- Which of the following best explains why coalescent-based phylogenetic inference is important in the age of phylogenomics? A) Coalescent-based methods directly model gene tree histories independently to infer the species tree in a summary-based manner, which is important for phylogenomic analysis were hundreds to thousands of gene histories are analyzed. B) Coalescent-based methods have the most advanced evolutionary models of molecular evolution, which is important for phylogenomic analysis were hundreds to thousands of gene histories are analyzed. C) Coalescent-based methods are no more important than other types of phylogenetic inference, even for phylogenomic analyses. D) None of the above.arrow_forwardWould a protein encoded on the core genome or one encoded only on the pan-genome be best to use in constructing a phylogenetic tree? Explain your answerarrow_forwardWithin the field of phylogenetics, what does a “bootstrap value” represent? (write/make 3 points for this question)arrow_forward
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