The human population went through a genetic bottleneck around 70,000 years ago, resulting in a reduction of genetic diversity. Which evolutionary process played a significant role in shaping human genetic diversity during this event? Genetic drift Gene flow Sexual selection Natural selection

Q: Darwin observed that members of a population vary in their traits. We now know that this variability…

A: Charles Darwin, the author of Origin of Species' was born naturalist. He is known for the most…

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A: Star Wars of Panama closed about 3 million years ago. This cut off an ocean current that allowed…

Q: Which evolutionary process leads to environmental adaptations in a population?  random mutations…

A: Evolution is defined as the progressive changes in the traits of certain species in due course of…

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A: Evolution is the process by which living organisms change over successive generations, leading to…

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A: After Darwin's theory of evolution, many new geneticists added new theories and explanations to show…

Q: DNA-based

A: In the initial times the genetic material of yhe most of the primitive organisms was the RNA and…

Q: The genetic difference within or between populations in the gene pool and/or gene frequency is…

A: Gene Pool: It refers to combination of all the genes including all type of alleles present in…

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A: The sperms are produced by the spermatogenesis. It occurs in the male reproductive part.

Q: Why are fruit flies good subjects with which to observe the process of evolution through natural…

A: The objective of the question is to understand why fruit flies are often used in studies of…

Q: Which of the following changes or mutations can be acted upon by natural selection? For each choice,…

A: Charles Darwin is often considered the father of evolution theory as he gave the modern theory of…

Q: In a population of 10 beetles, a event occurs, and all the beetles carrying a specific allele are…

A: The study of evolution is a key part of biology that tries to understand how organisms evolve…

Q: What is the difference between natural and artificial selection? Natural selection is rare Both lead…

A: Introduction  Selection in evolution refers to the process by which certain traits are favored and…

Q: In order for evolution to occur via natural selection on a particular trait, which of the following…

A: The correct answer is: variation, fitness consequences, and mode of inheritance.Variation: This is…

Q: Considering that the plants with the most trichomes were selected to produce seeds in the parent…

A: Natural selection is the process in which organisms which are more adapted in environment, will have…

Q: Which of the following describe examples where the mechanism of evolution was genetic drif A rock…

A: Evolution is defined in population genetics as a change within the frequency of alleles (gene…

Q: Black lava rocks only appeared in the desert about 1000 years ago. If the first dark-colored rock…

A: It's depends on how fast new mutation occur

Q: Which statement about genome evolution is false?     Mutations at the ends of introns are less…

A: Evolution is change in the heritable characteristics

Q: Evolutionary biologists often say that evolution “selects for outcomes” not for the particular…

A: Organisms do evolve based on the environmental causes to sustain in the dynamic and competitive…

Q: Which of the following is not one of the four factors that produce and redistribute variation? Group…

A: INTRODUCTION The four factors that produce and redistribute variation are genetic drift, mutation,…

Q: the list at right to the descriptions below. Choose the one BEST answer. Two populations of trout…

A: Natural selection is a phenomenon that was explained by Darwin. According to him there are three…

Q: Is natural selection random with respect to fitness?

A:

Q: Which of the following changes or mutations can be acted upon by natural selection? For each choice,…

A: Evolution is the gradual accumulation of changes in organisms over a period of time. The theory of…

Q: Imagine a scenario where you are male and have a triangular head. For some reason, females in your…

A: The correct answer is natural selection. In this case the females decides that which species they…

Q: How do the rest of the vocabulary terms (the ones you didn't use below) apply to what you observed…

A: Natural selection is the process by which organisms change and adapt to changing  environmental…

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A: Microevolution It is defined as the change in  allele frequencies occurring over a time within a…

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A: The phenomenon of evolution of a population to form distinct species is called speciation. A group…

Q: Relate this theory to one from the 19th or 20th century

A: Charles darwin, one of the best evolutionist wrote a book 'Origin of species'.He is the one who…

Q: Genetic drift in a population affects the gene pool in which of the following ways? decrease in…

A: Genetic drift is an evolutionary changes in allelic frequencies of a population as a matter of…

Q: Which of these evolutionary mechanisms could result in a population that becomes less genetically…

A: The correct answer is second one that is genetic drift.

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A: The variations in the population are made by mutations, gene flow, genetic drift. These bring the…

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A: Gene flow/ migration or allele flow is the movement of genetic information from one population to…

Q: Of all the evolutionary mechanisms known, only one is non-random: Group of answer choices genetic…

A: Introduction The Process By Which New Life Forms Emerge Organically Over Extended Periods Of Time Is…

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Q: Describe three or more genetic mechanisms that may lead to the rapid evolution of a new species.…

A: Answer: Introduction: Evolution is the heritable changes occurs by one generation to other. There…

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A: Natural selection is a type of evolutionary force which enhances the survival of an individual.

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Q: If vestigial traits are no longer useful to an organism, why don't they evolve out of the…

A: Vestigial organs are those structures that are present in the body which had some sort of use for…

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Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.