CONNECT ACCESS FOR BIOL 01204 <C>
12th Edition
ISBN: 9781264443123
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 23, Problem 1U
Overall similarity of
a. due to convergent evolution.
b. because of variation in rates of evolutionary change of different kinds of characters.
c. due to homoplasy.
d. All of the choices are correct.
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Which of the following statements about molecular markersare true?A. All molecular markers are segments of DNA that carryspecific genes.B. A molecular marker is a segment of DNA that is found at aspecific location in a genome.C. We can follow the transmission of a molecular marker byanalyzing the phenotype (i.e., the physical characteristics)of offspring.D. We can follow the transmission of molecular markers usingmolecular techniques such as gel electrophoresis.E. An STS is a molecular marker.
Which of the following is false?
a.
The color of a fruit fly's eyes is a trait.
b.
The instructions for producing a trait are found in a gene that controls the physical expression of that trait.
c.
A gene can have different alleles that can specify different traits, such as red or brown eye color.
d.
The trait is influenced by the gene, independent of the environment.
e.
By studying the patterns of traits over generations of an organism, the genetic composition of an organism can be deduced.
Morphological differences are abundant among many species. We make assumptions about why adaptations exist, but to understand whether a specific trait is a adaptive and why, researchers must create experiments that have all the following, EXCEPT:
a.
replication of each treatment to ensure reliability of results.
b.
experimental design that enables all full interpretation of differences.
c.
include control groups.
d.
hypotheses that are testable and falsifiable.
e.
exceedingly small sample sizes in each treatment group.
Chapter 23 Solutions
CONNECT ACCESS FOR BIOL 01204 <C>
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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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
- Consider the trait in Figure 22.5a. Which statement about this trait is correct? Please choose the best option. a) In humans, the trait cannot be explained by the theory of evolution by natural selection. b. In humans, the trait improves the biological fitness of individuals. c. In humans, the trait is similar to a functional version of the trait in closely related species. d. Humans lack vestigial traitsarrow_forwardPlease select the term that best exemplifies the definitions, descriptions, and examples detailed below. Each term may be used more than once! Alternate forms of the same gene; a. Homozygous dominant variants increase the level of genetic b. Genotype diversity observed between and within species c. Heterozygous The genetic composition of an individual; d. Allele for instance, tt (where "t" stands for e. Phenotype shortness) Susie is concerned because her genetic counselor informed her that she could pass the trait for cystic fibrosis along to her child. However, Susie appears "normal." We would describe Susie as having what genotype? + A monohybrid cross between two individuals with this genotype results in a 1:2:1 genotypic ratio among offspring in the F1 generation? + Physical or behavioral characteristics that are the result of gene expressionarrow_forwardWhich of the following pairs of structures is least likely to represent homology? Group of answer choices A. The mitochondria of a plant and those of an animal. B. The wings of a bird and those of an insect. C. The hemoglobin of a baboon and that of a gorilla. D. The brain of a cat and that of a dog. E. The wings of a bat and the arms of a human.arrow_forward
- You are studying the evolution of a trait in two species of snakes where both species can flatten themselves so that they can glide from tree to tree. You know that this trait is not present in the ancestor of all snakes. With this information, is the trait a homology? a. Yes b. No c. Only in one of the species. d. Not enough information to tell.arrow_forwardDerived characters are traits: A. that are more complicated than ancestral characters B. that characterize the last common ancestor of a particular collection of species. C. that have evolved after the last common ancestor of a particulan collection of species. D. that are less well suited to the environment than ancestral characters.arrow_forwardA. Which term is most relevant to a critical understanding of the fictional portrayal of primates such as Curious George and King Kong? a. homology b. homoplasy c. anthropomorphism d. cladomorphism B. Which of the following is true of primates? a. Some lemur species are able to interbreed despite different numbers of chromosomes. b. Lorises and galagos are extremely shy daytime species that are seldom seen in the wild. c. Tarsiers are a very diverse primate group that belongs to the suborder of Strepsirrhines. d. Today, lemurs are found only on the island of Madagascar and extreme South Africa.arrow_forward
- Which of the following are required for evolution by natural selection to occure. A.The phenotype of the trait is determined genetically. B. D. Variation in the phenotype of a trait. C. The phenotype for the trait is carried on the x chromosome. Certain phenotypes for the trait are more fit than others.arrow_forwardHomologous traits are BEST characterized by which of the following? O A They are traits that are derived from common ancestors. O B They are similar traits that evolved independently, but function similarly. O C They are traits that share a similar form among different organisms. O D They are traits which serve the same function in different species. E None of these describes homologous traits.arrow_forwardWhich of the following most likely demonstrates that classification is the basis of evolutionary relatedness? A. Organisms that share similar characteristics are impliedly understood to have common ancestors, thus having an evolutionary relationship. B. Classification is to organize organisms into groups based on their differences and similarities and evolutionary history, so as evolution changes, classification will also change C. Classification based on evolutionary relatedness always infer that all organisms that evolved similarly shares the same history. D. Homologous structures among organisms depicts the same evolutionary history or paths.arrow_forward
- You are reading a scientific paper regarding the relationships of the anatomical and behavioral characteristics of chimpanzees and their implications for early hominid evolution. With the emphasis on anatomical and behavioral characteristics, this implies that the researchers are relying on A. Traditional classifications of chimpanzees and humans B. Nonevolutionary classifications of chimpanzees and humans C. An incorrect classification of human ancestors D. Cladistic classifications of chimpanzees and humansarrow_forwardThe principle of parsimony a. helps evolutionary biologists distinguish among competing phylogenetic hypotheses. b. does not require that the polarity of traits be determined. c. is a way to avoid having to use outgroups in a phylogenetic analysis. d. cannot be applied to molecular traits.arrow_forwardA. Regarding modern Homo sapiens' origins, which of the following theories most closely matches this statement: one group of Homo erectus evolved into modern humans, and spread out of Africa, replacing other erectus populations along the way. a. African hybridization and replacement model b. Regional continuity model c. Replacement model d. H. antecessor origin theoryarrow_forward
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