CAMPBELL'S BIOLOGY 12E PERUSALL
12th Edition
ISBN: 9780135858080
Author: Urry
Publisher: PERUSALL
expand_more
expand_more
format_list_bulleted
Videos
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 solution
Students have asked these 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.
In 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.
X-value
0.95
0.84
2.72
7.83
Y-value
0.86
0.84
0.8
0.73
Chapter 24 Solutions
CAMPBELL'S BIOLOGY 12E PERUSALL
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
- Can 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_forwardFor 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_forwardFlower color variation in Phlox drummondii living either in sympatry or allopatry with Phlox cuspidata has previously been studied. Phlox drummondii exist in four colors: light blue, dark blue, light red, and dark red. Each flower color is controlled by a specific combination of alleles. In allopatry, butterflies randomly pollinate Phlox drummondii flowers of all color types. In contrast, non-random pollination occurs between differently colored flowers when both Phlox species are living in sympatry. The graph depicts the relative fitness of the alleles that drive flower color in Phlox drummondii under conditions of sympatry or allopatry with Phlox cuspidata. Label each half of the graph with the term sympatry or allopatry based on the observed trend in the relative fitness of the alleles that control all four flower colors in Phlox drummondii.arrow_forward
- What are the two groups of reproductive isolating mechanisms? Which of these is regarded as more efficient, and why?arrow_forwardIn normal plants, the probability that an offspring of a heterozygous parent is heterozygous is 0.5. If the survival of heterozygous offspring differs from that of homozygous offspring, the probability that a surviving offspring is heterozygous may not be equal to 0.5. For the following values of the probability, write a discrete-time dynamical system for the fraction of heterozygous offspring over time, find the solution, and compute the fraction that will be heterozygous after ten generations. How does this compare with the fraction for a normal plant? The probability that an offspring is heterozygous is 0.6.arrow_forwardWhat would be the most likely effect of deleting flowering locus D (FLD) in Arabidopsis thaliana?arrow_forward
- Suppose that the probability of survival of the three different types of diploid individuals in mosquitoes, as a result of the drug, is given by the constants WRR, WRS, and WSS. What are the frequencies of the three different types after this differential survival?arrow_forwardQuestion:- A) Give one domain.motif found in the SRY portion and state clearly how it leads to the development of the Wollfian system. B) Explain the genotype and the phenotype of an XY female and how such an individual could occur. C) Explain the genotype and the phenotype of an XX male and how such an individual could occur.arrow_forwardConsider a species of wasp in which females are diploid and come from fertilized eggs, while males are haploid and come from unfertilized eggs. Assuming that a queen mates with only one male, determine the coefficient of relationship (r) for each of the following. a)A female (worker) to her sister: b)A female (worker) to her brother: c)A female (worker) to her fatherarrow_forward
- The crab spider, Thomisus spectabilis, sits on flowers and preys upon visiting honeybees. Do honeybees distinguish between flowers that have crab spiders and flowers that do not? To test this, Heiling et al. (2003) gave 34 bees a choice between 2 flowers: one with, and one without a crab spider. In 24 of the 34 trials, the bees picked the flower that had the spider. In the other trials, the bees chose the spiderless flower. With these data, carry out the appropriate hypothesis test (one- or two-tailed), using the normal approximation to the binomial distribution to determine Z. For a one-tailed test, use the formula =(1-NORM.DIST(Z,0,1,TRUE) in Excel calculate P. For a two-tailed test, use the formula =2(1-NORM.DIST(Z,0,1,TRUE). State your answer for the value of P to three decimal places, and include the leading zero. Do all of the math in Excel DO NOT round the value of Z. Substitute the cell (e.g. B1) for Z in the formula for P.arrow_forwardYou are interested in studying the evolution of Rnase-based gametophytic self-incompatibility. You go into a population and identify 4 S-alleles present. These alleles are designated S1, S2, S3, and S4, and they occur in the sporophyte only as heterozygotes at equal frequency, in each of the 6 possible combinations: S1 S2 S₁ S3 S1 S4 S₂ S3 S₂ S4 S3 S4 Assuming random dispersal of pollen, what fraction of S₁ pollen grains that land on stigmas will be able to fertilize ovules in this population? Why?arrow_forwardGiven the results of our calculations of inclusive fitness for male pied kingfishers (Ceryle rudis) (see Table 13.1), isn’t it maladaptive to be a delayer? Why aren’t there any completely sterile helper male pied kingfishers? Please don't write from any online source.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