BIOLOGY-TEXT
5th Edition
ISBN: 9781260169621
Author: BROOKER
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 23.3, Problem 1CC
Summary Introduction
To determine: Whether the trait of having loud and elaborate courtship in male birds is involved in intersexual or intrasexual selection.
Introduction: In an intrasexual selection, males directly compete with each other to mate with of the opposite sex. In intersexual selection, members of one sex, usually the females choose their mates on the basis of certain types of desirable characteristics.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Prezygotic Isolating Mechanisms: Behavioral isolation canprevent individuals of different species from mating. Explorehow sexual selection contributes to behavioral reproductiveisolation. Explain your answer in a well defined manner.
???
Question- Bluegill sunfish males use one of three strategies in trying to gain access to females and mate. Each male only carries out only one of the three strategies: territorial male, sneaker male or female mimic. While the territorial males have the highest reproductive success relative to the other males, some males are not large enough to successfully compete with other territorial males and adopt an alternative strategy, where they gain at least some reproductive success. This is an example of
option 1-artificial selectionoption 2-balanced polymorphismOption 3-stabilizing selectionOption 4-negative-frequency dependent selection
Chapter 23 Solutions
BIOLOGY-TEXT
Ch. 23.1 - Prob. 1CSCh. 23.2 - Prob. 1CCCh. 23.2 - Prob. 2CCCh. 23.2 - Prob. 3CCCh. 23.3 - Prob. 1CCCh. 23.3 - Prob. 1EQCh. 23.3 - Prob. 2EQCh. 23.3 - Prob. 3EQCh. 23.4 - Genetic Drift Concept Check: How does the...Ch. 23.4 - Prob. 1CS
Ch. 23.5 - Prob. 1CCCh. 23 - Population geneticists are interested in the...Ch. 23 - The Hardy-Weinberg equation characterizes the...Ch. 23 - Prob. 3TYCh. 23 - Prob. 4TYCh. 23 - Prob. 5TYCh. 23 - Prob. 6TYCh. 23 - Prob. 7TYCh. 23 - Prob. 8TYCh. 23 - Kimuras proposal regarding neutral variation...Ch. 23 - Populations that experience inbreeding may also...Ch. 23 - Prob. 1CQCh. 23 - Prob. 2CQCh. 23 - Prob. 3CQCh. 23 - Antibiotics are commonly used to combat bacterial...Ch. 23 - Discuss die similarities and differences among...
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
- Describe the advantage of using an aural or pheromone signal to attract a mate as opposed to a visual signal. How might the population density contribute to the evolution of aural or visual mating rituals?arrow_forwardGive typing answer with explanation and conclusion to all partsarrow_forwardGive typing answer with explanation and conclusionarrow_forward
- One sentence answer only.arrow_forwardJohnston et al. estimate that 50% of males with the Ho Ho genotype develop scurs (instead of full horns). They also estimate that around 13% of the total male population, at birth, will develop scurs. The males who managed to get access to mating opportunities with females seem to show no preference for whether the females have horns or not. Thus in the adult mating population, mating is random with respect to the genotype at this locus. What is the frequency of the Hop allele in the population?arrow_forwardBjork and Pitnick (2006) investigated sexual selection in Drosophila melanogaster. Which of the following is an accurate conclusion that can be made from their results below? [Note that the open circles and dotted line represent data collected from females and the closed circles and solid line represents data collected from males.] 200 - 150 100 50 1 2 4 5 Number of mates (mating success) O a. Sexual selection is stronger on females than males. O b. Males have a weaker Bateman gradient than females. O C. Females likely invest more in the reproductive process. O d. Males likely exhibit parental rather than females. Number of offspring (reproductive success)arrow_forward
- Give typed full explanationarrow_forwardAsaparrow_forwardBelow you will find a spreadsheet of the "class" data, use this to complete data table 2. Remember, the class is a total of 24 students, to calculate frequency use the genotype with the highest frequency for each characteristic and divide that number by 24. Don't forget to answer the question on the bottom of page 107! Gender Letters XY XX Sex X, Y 11 13 XX Homozygous Heterozygous Homozygous Recessive Genotype highest frequency Characteristic Dominant Aa Eyebrows Eye Shape Hitchhikers А, а R, r 14 10 11 3 Rr Hh Н, h D, d Е, е F,f G, g В, Ь 15 Earlobes 4 8. 12 dd Ee Tongue Roll Widows Peak 7 10 13 Ff Face Shape 9. 12 3 Gg Eye Color 14 Bb MacBook Air esc 4) FI F2 F4 F5 F6 F8 F9 F10 F1I F12 @ # $ &arrow_forward
- Don't Explain Just Solve the MCQ'sarrow_forwardQ2. In a drosophila experiment involved the gene for wing size (dominant large, L, and recessive small, 1) and the gene for body color (dominant yellow, G, and recessive black, g). If we had no information about the location of both genes, what would be all the possible scenarios of the cross GgLl x ggll? Keep your answer short and focus on the genotypes and phenotypes frequencies of the progeny in each scenario. instead You arearrow_forwardWould you expect sexual selection to increase or decrease adaptation of a population to its environment? Do the pleiotropic effects and good genes mechanism for the evolution of female preferences differ in their implications for adaptation to the environment?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Animal Communication | Ecology & Environment | Biology | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=LsMbn3b1Bis;License: Standard Youtube License