In the video about studies of sexual and asexual minnows in desert pools, which of the following was true?O parasites drove all the minnows to extinctionO the outbred sexual populations had the highest rates of parasite infectionasexual populations always outcompeted sexual populationsthe asexual populations had higher rates of parasite infection than genetically diverse sexual populationsO the pools that were recolonized after drought had increased genetic diversityQUESTION 30Birds species that have high levels of promiscuity are likely to have what diner characteristic?O chicks that beg louder for foodO chicks that will not beg for foodchicks sharing a nest will be full siblingsO the strength of kin selection will be high among chicks sharing a nest QUESTION 31The first court case in the United States where a phylogenetic tree was used as evidence involvedO a study determining where Covid-19 first entered the USO a case for listing whooping cranes as an endangered speciesO a doctor accused of intentionally infecting an ex-girlfriend with HIVO DNA from oak leaves at the scene of a Florida homicideO a case involving the sale of an invasive species as a "native species" by a nurseryQUESTION 32Reproduction in roughskinned newts, like most species, shows thatO females compete for access to malesO males have greater variation in reproductive success than femalesMany females cannot find a mateMale reproduction is limited by their sperm production

In the video about studies of sexual and asexual minnows in desert pools, which of the following was true? O parasites drove all the minnows to extinction O the outbred sexual populations had the highest rates of parasite infection O asexual populations always outcompeted sexual populations the asexual populations had higher rates of parasite infection than genetically diverse sexual populations O the pools that were recolonized after drought had increased genetic diversity

In the video about studies of sexual and asexual minnows in desert pools, which of the following was true? O parasites drove all the minnows to extinction O the outbred sexual populations had the highest rates of parasite infection O asexual populations always outcompeted sexual populations the asexual populations had higher rates of parasite infection than genetically diverse sexual populations O the pools that were recolonized after drought had increased genetic diversity

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter12: Processes Of Evolution

Section: Chapter Questions

Problem 8SQ

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A group of 50 men and 50 women establish a colony ona remote island. After 50 generations of random mating,how frequent would a recessive trait be if it were at afrequency of 1/500 back on the mainland? The population remains the same size over the 50 generations, andthe trait has no effect on fitness.
A- the two nematode populations have undergone complete speciation B- individuals reared on different bacteria produce offspring that have a better chance of survival C- The populations appear to be most likely in the process of speciation D- all individuals were equally reproductively successful regardless of mate combination
If these conditions held constant – what would the expected heterozygosity be in thepopulation today (2018 to deal with a clean integer value for generations)?1b. In 1884 the population had grown to 106 when disaster struck the island. Of the 19 adult menon the island, 15 were in the same fishing boat that capsized, leaving only 4 adult men alive onthe island. These desperate times may have changed the sex ratio of the breeding population onthe island. Let’s say that now, each man fathered children with an average of 1.5 differentwomen (male:female ratio of 1:1.5). If we start back with a heterozygosity of 0.5 from this point,given the effective population size on Tristan da Cunha, what is the expected heterozygosity inthe current population 7 generations later?1c. The scenarios described in 1a and 1b are examples of which two evolutionary phenomena,respectively?
After observing a finite population of asexually reproducing salamanders, which of the following outcomes is consistent with Müller’s ratchet? a. The population fitness will decline due to the least fit individuals randomly not surviving to produce offspring into the next generation. b. The population fitness will increase due to the most fit individuals randomly not surviving to produce offspring into the next generation. c. The population fitness will decline due to the most fit individuals randomly not surviving to produce offspring into the next generation. d. The population fitness will increase due to the least fit individuals randomly not surviving to produce offspring into the next generation.
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