It is well known among population geneticists that a population bottleneck in the past history of a species be observed in a low effective population size for many future generations.  It is known that the human population size crashed to about 10,000 individuals at about 70-100,000 years ago.  Do the effective population sizes of the chimpanzee and the gorilla suggest that this event (ash from an eruption in Indonesia) did not cause as significant a bottleneck effect in these primates as it did in humans? Give a reason for your answer.

Q: For questions 1-3, suppose that in generation 0, the frequency of allele A1 in a population of…

A: Introduction  The relative frequency of an allele (gene variant) at a certain locus in a population…

Q: On the right is a figure showing the reconstructed route of colonization of a rodent species found…

A: Evolution is a process that results in changes in the genetic material of a population over time.…

Q: Galapagos marine iguanas are differentiated by islands. However, the iguanas swim well, suggesting…

A: Answer :: The proportion of alleles (m) of isla tortuga fr isabela. Allele A frequency p=0.2 in next…

Q: 17a. Assuming that both types of pom-poms are present in the population, what do you think would…

A: *Natural selection is due to when individuals of genotypes are more likely than individuals with…

Q: In a field study in a woodland ecosystem in the Serengeti region on the border of Tanzaniaand Kenya,…

A: Approach to Solving the Question: 1. For part (a), the approach is to simply add the number of…

Q: Which of the following is an advantage of sexually reproducing populations over asexually…

A: The process of the formation of new organisms from existing organisms is called reproduction. There…

Q: Recall how Anolis carolinensis species on several islands off the Florida coast adapted to the…

A: Anolis lizards have In 15 years, these lizards' toe pads have become larger, with more sticky scales…

Q: Based on (MS-LS4-4) standard(grade8) - Mathematical Representations of Natural Selection: Based on…

A: Darwin's finches are a group of closely related bird species that are endemic to the Galapagos…

Q: the De Arctic fox p

A: The Arctic fox, scientifically named Vulpes lagopus is a highly adapted species that live in the…

Q: At the edge of the Arctic Circle, owls prey on field mice. Occasionally, in a litter of white field…

A: Natural Selection is the correct answer.

Q: b) Suppose that we want to model the evolution of the population of a cer- tain type of organisms.…

A: Population --  Introduction --Population usually measured in the terms of population density which…

Q: Choose True for yes and False for no, for each of the statements 1) The distribution of the two…

A: Given,          A,B,C species share a common ancestry but they are present in different places .And…

Q: Central African chimpanzees (Pan troglodytes troglodytes) and bonobos (Pan paniscus) are two…

A: Evolution can be defined as the change in the characteristics of a species over several generations…

Q: Which of the following is NOT a potentially negative impact of genetic drift in a population?…

A:

Q: A hundred years ago, 20.4% of individuals in a population of bears was found to have a genotype that…

A: Evolution is defined as the change in trait over a period of time.

Q: Consider a gene with two alleles, C and M. The table below describes fitness for different genotypes…

A: *Evolutionary factors are  Natural selection Mutations Migration Gene flow Genetic drift. * These…

Q: Imagine three islands, each with a population of frogs. There are approximately 1,100 frogs on…

A: Due to faults in DNA copying and the natural tendency of sexual reproduction, there is an inbuilt…

Q: species of wingless insects that apparently have evolved from winged ancestral species

A:

Q: Knowing that initial heterozygosity will change over time, predict the genetic 5-year trend of a…

A: Predicting a population genetic trend is depends on a variety of factors such as mutation rates and…

Q: /hich of the following can be considered an example of "bottleneck effect" of genetic drift? An…

A: Genetic drift is a mechanism of evolution which bring about chance effect that cause alterations in…

Q: A population of 600 scorpions was split into four populations when irrigation canals were built…

A: Introduction :- Genetic drift is a random fluctuation in the frequency of alleles in a population…

Q: n the 1960s, a population of squirrels (Sciurus carolensis) was being studied in Alabama and the…

A: A population in Hardy Weinberg equilibrium is said to be in genetic equilibrium.

Q: On the right is a figure showing the reconstructed route of colonization of a rodent species found…

A: Genetic drift is a change in the frequency of an allele within a population over time. Founder…

Q: Why should we take caution when public discussions promoting efforts that would result in reducing…

A: Modern human variation is the result of a combination of genetic, environmental, and cultural…

Q: The frosted flatwoods salamander (Ambystoma cingulatum)is a threatened species native to…

A: Let's go through the step-by-step approach to solving this problem: Approach:1. Understand the…

Q: locus codes for drought tolerance in desert tortoises. On average during a drought, genotype AA…

A:

Q: Some eastem North American populations of apple maggot (Rhagoletis pomonella) have shifted hosts…

A: The process of formation of new species is referred as speciation. Speciation occurs with the help…

Q: Much research on extinction has focused on small populations, which are vulnerable for numerous…

A: Extinction Vortex is a term that is used to define the process which the declining population of an…

Q: Imagine three islands, each with a population of frogs. There are approximately 1,100 frogs on…

A: Introduction :- Genetic drift is a random process that can result in changes to the genetic…

Q: Imagine you are studying a population of your favorite organism (tigers perhaps), and discover that…

A: Natural selection require difference and variation among the population of organism & in this…

Q: ion. Variations in gene frequency due to advantages in natural selection would cause a greater…

A: The Hardy-Weinberg equilibrium or Hardy-Weinberg law is a fundamental law for population genetics…

Q: Compare and contrast the multiregional and replacement models for human origins in the table below.…

A: Human evolution is how humans and their ancient relatives changed over a very long time from early…

Q: Icefishes live in the Southern Ocean, which encircles Antarctica. Icefishes have evolved to produce…

A: As per our bartleby guidelines we have to answer only first 3 subparts : you may repost rest of the…

Q: Several generations of population X have been studied. The dominant allele frequency for the second…

A: Organisms that are better suited for the surrounding attain reproductive maturity and are called…

Q: Two types of genetic drift effects are: the founder effect, in which a few members of a larger…

A: Important information: Founder Effect:The founder effect is a phenomenon in which a small group of…

Primate evolution

Primates are a relatively new species and first appeared in the fossil record nearly 55 million years ago. They may have originated as far back as the cretaceous period. Their fossils were observed in North America, Asia, and Europe. Long before the first monkeys and their prosimian relatives developed, most animal species thrived and died. The first primates did not exist until about 50-55 million years ago, even though the planet is 4.54 billion years old and the first life goes back at least 3.5 billion years. Dinosaurs had been extinct for 10 to 15 million years when this happened.