BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 23.1, Problem 2LO
Summary Introduction
To determine: The reason that
Introduction: The phenotypic similarity is the easily observable similarity. The genetic content of an individual is responsible for the phenotypic characteristics.
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Chapter 23 Solutions
BIOLOGY
Ch. 23.1 - Prob. 1LOCh. 23.1 - Prob. 2LOCh. 23.2 - Prob. 1LOCh. 23.2 - Prob. 2LOCh. 23.2 - Demonstrate how a cladogram is constructed.Ch. 23.3 - Explain the taxonomic classification system.Ch. 23.3 - Prob. 2LOCh. 23.3 - Prob. 3LOCh. 23.4 - Prob. 1LOCh. 23.4 - Prob. 2LO
Ch. 23.4 - Prob. 3LOCh. 23.5 - Prob. 1LOCh. 23 - Construct a data matrix like the one in figure...Ch. 23 - Prob. 1IQCh. 23 - Prob. 2IQCh. 23 - Prob. 3IQCh. 23 - Prob. 4IQCh. 23 - Overall similarity of phenotypes may not always...Ch. 23 - a. is based on overall similarity of phenotypes....Ch. 23 - The principle of parsimony a. helps evolutionary...Ch. 23 - Parsimony suggests that parental care in birds,...Ch. 23 - The forelimb of a bird and the forelimb of a...Ch. 23 - In order to determine polarity for different...Ch. 23 - In a paraphyletic group a. all species are more...Ch. 23 - A paraphyletic group includes a. an ancestor and...Ch. 23 - Prob. 9UCh. 23 - A taxonomic group that contains species that have...Ch. 23 - Rapid rates of character change relative to the...Ch. 23 - Species recognized by the phylogenetic species...Ch. 23 - Prob. 1SCh. 23 - Identifying outgroups is a central component of...Ch. 23 - As noted in your reading, cladistics is a widely...Ch. 23 - Across many species of limpets, loss of larval...Ch. 23 - Birds, pterosaurs (a type of flying reptile that...Ch. 23 - AID:1825 | 10/04/2018 6. In what sense does the...
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- "Ancestry tests" are sold by many companies. There are significant limitations to these tests. Why is this the case? High rates of gene flow between populations reduce the reliability with which any sequence can demonstrate membership in one particular population. Evaluating too few genetic loci, of which just a small number happen to be similar, can lead to the conclusion that individuals are much more genetically similar than they actually are. A DNA match between two individuals living today is not a match with an ancestor. Rather, it suggests that the two people may have inherited the DNA sequence from a common ancestor. all of these are limitations to "Ancestry tests" O High genetic variation among individuals within most populations makes it difficult to identify specific sequences that can reliably indicate membership in a population.arrow_forwardIn your own words, explain the difference between ancestral and derived traits.arrow_forwardWhat evolutionary factors can cause allele frequencies to change and possibly lead to a genetic polymorphism? Discuss the relative importance of each type of process.arrow_forward
- Explain the term outbreeding.arrow_forward(Practice Hint: Click or tap your finger on the text in the box to make your selection.) A student is researching why domestic cats often have white patches of fur. The student reads the paragraph shown and makes the following conclusion: "Domestic cats with white fur evolved from wildcats through artificial selection." Select the sentence in the paragraph that best supports the student's conclusion. During embryonic development, certain stem cells determine whether a kitten will be born with solid-color fur or with white patches of fur. Wildcats are the genetic ancestors of the domestic cat and have fur color that blends into their environment. Wildcats that eliminated pests and were less afraid of humans were useful for protecting harvested grains. These cats were cared for by humans and were selected to reproduce. O During embryonic development, certain stem cells determine whether a kitten will be born with solid-color fur or with white patches of fur. Wildcats are genetic…arrow_forwardEvolution is driven by both nonrandom and random mechanisms. Identify the mechanisms of evolution that are random and comment on how they affect allele frequencies across generations.arrow_forward
- Since nucleotide sequences are more variable than amino acid sequences, you’ll use GAPDH nucleotide sequences to compare across the six taxa you’re analyzing. Suppose that you used BLAST to align all possible pairs of GAPDH sequences among lancelet, lamprey, bass, frog, turtle, and leopard. You would be able to construct the following table showing the percent similarity values across all six taxa. Leopard Turtle Frog Bass Lamprey Lancelet Leopard 100% 83% 80% 81% 76% 74% Turtle – 100% 79% 79% 74% 72% Frog – – 100% 79% 74% 71% Bass – – – 100% 77% 74% Lamprey – – – – 100% 73% Lancelet – – – – – 100% Now you can use this data (similarly to how you used the data in the character table) to build a phylogenetic tree. The distance between species in a tree is directly related to the amount of similarity between their gene sequences. For instance, two species will be closer together if the amount of similarity is high, or far apart if the amount of similarity is low. Which…arrow_forwardWhy are only inherited variations important in the evolutionary process? Explain your answer.arrow_forwardPlease do NOT COPY FROM THE INTERNET. Write the answers in a simple way as possible. Again no copying from the internet. Use the vocabulary words in the side for whatever numbers of the question it is asking you to.arrow_forward
- Hereditary genetics Population genetics Molecular genetics Answer Bank expressing exogenous transgenes to understand function calculating genotype frequencies to understand phenotype changes in a population researching how genetic drift impacted many species over the past thousand years observing phenotypes in offspring to understand gene inheritance studying DNA-protein interactions to understand gene regulation tracing pedigrees to determine patterns of gene transmission within a familyarrow_forwardDescribe why continuous variation is common in humans and provide examples of such traitsarrow_forwardAn ancestral gene "Stacin" is involved in initiating parental care in both males and females. The stacin gene duplicates and mutations arise in both copies that change the function. One copy becomes specialized to function in male parental care "Patristacin" and the other copy becomes specialized to function in female parental care "Matristacin". Which of the following terms best describes this change in function in the two sequences? Group of answer choices Profunctionalization Prefunctionalization Subfunctionalization Neofunctionalizationarrow_forward
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