BIO 104L LAB MANUAL
12th Edition
ISBN: 9781307126853
Author: Mader
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 17, Problem 1TS
You want to decide what definition of a species to use in a study.
What are the advantage and disadvantages of one based on
DNA sequences as opposed to the evolutionary and biological species concept?
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What is a dichotomous key? How could you go about constructing your own dichotomous key for a random collection of organisms in the wild?
A scientist is attempting to build a cladogram that shows the evolutionary closeness of three organisms in relation to humans. After doing DNA analysis, they determine that the organisms share the following percentages of DNA:
Organism A and humans share 85% of their DNA.
Organism B and humans share 80% of their DNA.
Organism C and humans share 90% of their DNA.
Based on this information, which order should they go on the cladogram (from least related to most related)?
Imagine you are studying two eukaryotic species. The genome of Species A is 100
Mb in size. The genome of Species B is 500 Mb in size. Based only on this
information, which of the following statements are accurate?
Species B is a more complex organism than Species A.
None of the other statements can be made based solely on the information in
the question.
Species B has more genes than Species A.
Species B has more chromosomes, more genes, and is more complex than
Species A.
Species B has more chromosomes than Species A.
Chapter 17 Solutions
BIO 104L LAB MANUAL
Ch. 17.1 - Prob. 1CYPCh. 17.1 - Prob. 2CYPCh. 17.1 - Prob. 3CYPCh. 17.2 - Prob. 1CYPCh. 17.2 - Prob. 2CYPCh. 17.2 - Prob. 3CYPCh. 17.3 - Prob. 1CYPCh. 17.3 - 2. Discuss how the study of developmental...Ch. 17.3 - Prob. 3CYPCh. 17 - Prob. 1NS.1QC
Ch. 17 - Prob. 1NS.2QCCh. 17 - Prob. 1E.1QCCh. 17 - Prob. 1E.2QCCh. 17 - Prob. 1ACh. 17 - Prob. 2ACh. 17 - Prob. 3ACh. 17 - Prob. 4ACh. 17 - Prob. 5ACh. 17 - Prob. 6ACh. 17 - Prob. 7ACh. 17 - Prob. 8ACh. 17 - Prob. 9ACh. 17 - Prob. 10ACh. 17 - Prob. 11ACh. 17 - Prob. 12ACh. 17 - Prob. 13ACh. 17 - Prob. 14ACh. 17 - Prob. 15ACh. 17 - You want to decide what definition of a species to...Ch. 17 - At a recent school board meeting, a member of the...Ch. 17 - Prob. 3TSCh. 17 - Prob. 4TS
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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
- What do you mean by numerical taxonomy?arrow_forwardExplain your answer in some depth and avoid just saying "It is A" or It is B. Defend your answer and explain why you choice that answer choice. Question: Domestic dogs would least likely meet the definition of a single species using which concept? Group of answer choices A) Lineage B) Biological C) Morphological D) Domestic dogs are not a single species according to any of the species concept definitions.arrow_forwardLook at the graphs of other organisms. What observations can you make about the data in the graphs? (Which bases are present in equal numbers here- are they all the same as on your chart?) Look at the graphs again. Do you notice differences between organisms? What is the difference? Are there any organisms that are similar? If yes, why do you think those organisms are more similar than others?arrow_forward
- In evolution, what is Phylogenetic path analysis? I just need a general description of how it works.arrow_forwardFor each of the following organism scenarios, select the species concept that is most applicable for distinguishing species. Bacteria African elephants Fossil organisms Closely related bird species occupying different habitats [Choose ] [Choose ] [Choose ] [Choose ] ◄► ◄►arrow_forwardConstruct a cladogram that provides one hypothesis about the evolutionary history for these 6 taxa. Be sure to map each of the character states for every taxon represented in the character matrix. See tips below to help get you started. You can insert a photo of a hand drawn cladogram or create one on your device. Keep in mind that cladograms are hypotheses, there are many different cladograms that can be constructed. a) Which characteristics were identified as homoplasies on your cladogram? b)arrow_forward
- Construct a cladogram that provides one hypothesis about the evolutionary history for these 6 taxa. Be sure to map each of the character states for every taxon represented in the character matrix. See tips below to help get you started. You can insert a photo of a hand drawn cladogram or create one on your device. Keep in mind that cladograms are hypotheses, there are many different cladograms that can be constructed. a) Which characteristics were identified as homoplasies on your cladogram? b) Now that your tree has been constructed, how confident do you feel in your hypothesis and why?arrow_forwardWhat is meant by identification of a species?arrow_forwardSpecies 1 is described as 2n =8 and has chromosome composition BBDDEEHH. %3D Species 2 is described as 2n = 10 and has chromosome composition NNPPSSXXZZ. Select the best answer to classify the organism below based on its chromosome composition. Note that each letter represents a chromosome and that the organism below is either an individual from one of the species above or is derived from one or both species above. Organism: NNPSSXZZ Select one: a. Trisomic O b. Double Trisomic O C. Diploid O d. Autotetraploid e Haploid f. Nullisomic O g. Allotetraploid Oh. Double Monosomic i. Allotriploid Monosomic Ok. Autotriploidarrow_forward
- Dichotomous Keys are used to identify an organism based on a choice between character states. Can you answer all the parts to this question please in complete sentences Based on the name, how many options should you have when working with a dichotomous key? Why does the term “dichotomous” let you know that? (hint: look up the Greek roots and meanings for this word)arrow_forwardparsimony and maximum likelihood are two approaches to: a. Bayesian analysis or b. Phylogenetic analysis.arrow_forwardSpecies 1 is described as 2n = 8 and has chromosome composition BBDDEEHH. %3D Species 2 is described as 2n = 10 and has chromosome composition NNPPSSXXZZ. Select the best answer to classify the organism below based on its chromosome composition. Note that each letter represents a chromosome and that the organism below is either an individual from one of the species above or is derived from one or both species above. Organism: NPSXZBBDDEEHH Select one: Нaploid O b. Autotriploid O c. Allotetrapioid O d. Autotetraploid Trisomic Of Monosomic Double Trisomic O h. Allotriploid Diploid Double Monosomic O k. Nullisomicarrow_forward
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Phylogenetic Mysteries: Crash Course Zoology #12; Author: CrashCourse;https://www.youtube.com/watch?v=cVaw7nF72Aw;License: Standard youtube license