Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 24.4, Problem 2CC
Summary Introduction
To summarize: The proof that supports the fact that the “yup” locus acts as a pre-zygotic barrier to reproduction between two species of monkey flowers and whether the yup locus alone controls this barrier to reproduction.
Concept introduction:
Two species of monkey flower: Mimulus cardinalis and M. lewisii, which are closely related, will exhibit numerous pre and post-zygotic barrier to reproduction. But the pollinator of choice which is a prezygotic barrier accounts for the most of reproductive isolation.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Consider the following statements and indicate whether each presents an idea of Jean-
Baptiste Lamarck, of Charles Darwin or of both scientists. On the blank before the statement,
write L for Lamarck, D for Darwin or B for both.
1) An organism directs its own adaptations because of an inborn urge to be perfect (that
is, to be better suited to the environment).
2) Individuals do not evolve, but populations do.
3) Individuals in a population exhibit variation in their traits, such that no two
individuals are exactly alike.
1
4) Many different kinds of living things are adapted to their environment.
5) Members of a population who are better adapted to the environment have higher
chances of survival and reproduction.
6) Parents pass on their traits to their offspring.
C
Help
gps14
Chapter 24 Solutions
Campbell Biology (11th Edition)
Ch. 24.1 - Prob. 1CCCh. 24.1 - WHAT IF? Suppose two bird species live in a...Ch. 24.2 - Summarize key differences between allopatric and...Ch. 24.2 - Prob. 2CCCh. 24.2 - WHAT IF? Is allopatric speciation more likely to...Ch. 24.2 - MAKE CONNECTIONS Review the process of meiosis in...Ch. 24.3 - 1. What are hybrid zones, and why can they be...Ch. 24.3 - WHAT IF? Consider two species that diverged while...Ch. 24.4 - Speciation can occur rapidly between diverging...Ch. 24.4 - Prob. 2CC
Ch. 24.4 - MAKE CONNECTIONS Compare Figure 13.12 with Figure...Ch. 24 - Explain the role of gene flow in the biological...Ch. 24 - Can factors that cause sympatric speciation also...Ch. 24 - What factors can support the long-term stability...Ch. 24 - Is speciation something that happened only in the...Ch. 24 - The largest unit within which gene flow can...Ch. 24 - Prob. 2TYUCh. 24 - Prob. 3TYUCh. 24 - Prob. 4TYUCh. 24 - Which of the following factors would not...Ch. 24 - Plant species A has a diploid chromosome number of...Ch. 24 - Prob. 7TYUCh. 24 - SCIENTIFIC INQUIRY DRAW IT In this chapter, you...Ch. 24 - WRITE ABOUT A THEME: INFORMATION In sexually...Ch. 24 - Prob. 10TYU
Knowledge Booster
Learn more about
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
- How is the frequency of cotransduction related to the relative position of genes on a bacteial chromosome? Draw a map of three genes and describe the expected relationship of cotransduction frequencies to the map.arrow_forwardIn the experiment conducted to test why individuals in the tree species Fuschsia excorticata retain flowers after they turn red even though the trees pollinate and offer a nectar reward only when flowers are green (Figure attached 10.28 first tested the 'pollinator-attraction' hypothesis that red flowers attract pollinators: once drawn to a tree, pollinators could forage on the green flowers still present, increasing overall pollination efficiency. Please assess the lowercase-Roman-numeral-labelled statements that appear immediately below and click the uppercase-letter-labelled response that appears below and conveys the most accurate information. i. If the pollinator-attraction hypothesis were correct, then green flowers surrounded by red flowers should receive more pollen than should green flowers surrounded by only green flowers. ii. The prediction in statement i could be tested by removing red flowers from some trees, forming one experimental group, and leaving red flowers on…arrow_forwardIn the fish Species a, the expression of different combinations of four Hox genes results in structural differences in tissues and organs along the anterior-posterior axis. Figure 3 shows the expression pattern of four genes, i.e. Genes 1 – 4, and the tissue produced along the embryonic anterior - posterior plane of fish Species a wild type. The influence of Hox genes on the formation of specific types of tissue can be determined by introducing gain-of-function and loss-of-function mutations in specific Hox genes. Looking at Figure 3, predict what would happen to each one of the four types of tissues, if the expression of gene 3 was expanded anteriorly by a gain-of-function mutation so that the pattern of gene 3 expression would be the same as that of gene 2.arrow_forward
- Please answer question 3arrow_forwardA) Using the information/image provided, why could the researchers rule out pollinator selection as a reason for flower color variation? B) What must be true about the flowers in Boechera stricta? A) Plants have both male and female flowers that are reproductively mature at the same time. B) Plants have both male and female flowers that are reproductively mature at different times. C) Plants produce either male or female flowers C) If the scientists' hypothesis is true, what type of herbivore defense is flower pigmentation in this mustard? either constitutive or induciblearrow_forwardIn the late 1980s, this gradient hypothesis was united with a genetic approach to the study of Drosophila embryogenesis. If there were gradients, what were the morphogens whose concentrations changed over space?arrow_forward
- Explain the technical differences between a cross-fertilizationexperiment versus a self-fertilization experiment.arrow_forwardSuppose Jonathan breeds flowers and wants to optimize production of offspring with both short stems and white flowers, which are coded for by two genes with the recessive alleles t and p, respectively. In flowers, T codes for tall stems and P codes for purple flowers. Jonathan crosses two heterozygotes that produce 544544 offspring. How many of these 544544 offspring are predicted to have both short stems and white flowers? please help solve and please explain thank youarrow_forwardCan you answer both questions please (b) Based on the ABC model, what would be the predicted phenotype of a double AB mutant? (c) In developing flowers of dioecious Spinach and Thalictrum, stamens are not developed in female flowers, and carpels are not developed in male flowers. What is the simplest model of ABC class gene expression that might explain this? Whorl 1 Whorl 2 Whorl 3 Whorl 4 Wild type sepals petals stamens carpels A class gene Carpels stamens stamen carpel mutants B class gene Sepal Sepal carpel carpel C class gene Sepal petal petal sepal mutants mutantsarrow_forward
- For each of the following, identify what characteristics of a species male and female karyotype would indicate that mechanism of sex-determination. In each case, list a characteristic that would be specific to only that sex-determination system if possible. If no such characteristic is possible, specify which other sex-determination system would show the same karyotype characteristic. (A) Genic (B) XY sex chromosomes (C) ZW sex chromosomes (D) Haplo-diploid genomes (E) XO sex chromosomes (F) Environmentalarrow_forwardWhat, if anything, does this experiment indicate about the validity of the pangenesis and the germ-plasm theoriesarrow_forwardThese results show how many cells of each type of yeast showed mating structures after being exposed to three different yeast mating pheromones. For each yeast cell type, a group of 1000 cells were given the Wild Type-created pheromone. Then, another group of 1000 cells were given the Variant 1-created pheromone, and then another group of 1000 cells were given Variant 2-created pheromone. The same concentration of pheromone was given to each group. After 48 hours, the cells were observed. Cells that had differentiated by showing mating structures were counted. A) Identify a signaling molecule from the model presented. Explain how receptors play a role in cell differentiation. B) Identify the dependent variable and two controls the experimenters used when conducting this experiment. C) Evaluate if the number of Variant 1-Type cells with mating projections was significantly different from those of the Wild Type. Use chi-square analysis. D) Scientists propose that a mutation has occurred…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Reproduction: Crash Course Zoology #9; Author: CrashCourse;https://www.youtube.com/watch?v=poLyJDVjKlM;License: Standard youtube license