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Genetics and Evolution

Created by

@SmartestDiscernment

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Questions and Answers

Which of the following is true about intrasexual selection?

It is competition among females for access to males. (correct)

It occurs when males display traits to attract females.

It is when certain traits increase reproductive success.

It affects small populations more than larger ones.

Which type of selection favors extreme phenotypes over intermediate ones?

Random selection

Stabilizing selection

Directional selection

Disruptive selection (correct)

What is the proportion of one allele in the gene pool called?

Phenotypic frequency

Allele frequency (correct)

Gene frequency

Trait frequency

Which phenomenon is responsible for the observable change in the allele frequencies of a population over time?

Genetic drift Signup and view all the answers

What factors can disrupt the equilibrium of a population according to the Hardy-Weinberg equation?

Mutations and non-random mating Signup and view all the answers

Which of the following is an example of sexual selection?

Certain traits increasing reproductive success. Signup and view all the answers

What kind of distribution curve does the beak length of penguins follow?

Normal distribution curve Signup and view all the answers

What is speciation?

The rise of two or more species from a single existing species. Signup and view all the answers

What is the main factor that drives natural selection?

Advantageous phenotypes Signup and view all the answers

Study Notes

Phenotypic differences are due to genes that code for traits.
Natural selection favors advantageous traits within a population.
Mutations and crossing over/recombination can result in genetic variation.
Allele frequency is the proportion of one allele in the gene pool.
The Hardy-Weinberg equation is used to determine equilibrium in populations.
The equilibrium is disrupted by mutations, small population size, natural selection, gene flow, and non-random mating.
Scientists use the Hardy-Weinberg model to compare real populations.
The beak length of penguins follows a normal distribution curve.
The majority of individuals have a beak length close to the mean.
Extreme traits are not common in populations.

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Description

Test your knowledge on genetics and population dynamics with this informative quiz! From the basics of phenotypic differences to the intricacies of the Hardy-Weinberg equation, this quiz covers it all. Discover how natural selection, mutations, and allele frequency impact populations, and learn how scientists use models to study real populations. Finally, explore the fascinating world of penguin beak length and the normal distribution curve. Get ready to sharpen your genetics and population genetics skills!