Genetics and Natural Selection Quiz

What do we call random changes to the ratio of alleles in a population?

• Natural selection

• Genetic drift

• Phenotype

• Genetic engineering

Wrinkled pea pods are the result of a dominant allele. What is the genotype of non-wrinkled pea pods? Choose your own letter to represent the genotype.

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In a simple dominant trait, will the genotypes Jj and jj produce different phenotypes? Explain.

• Yes,, it will produce a new one.

• Maybe

• No. Since each genotype contains a dominant allele, the dominant phenotype will be expressed in both instances.

In pea flowers, purple is dominant to white. A purebred plant with white flowers (genotype pp) is crossed with a purebred plant with purple flowers (genotype PP). What is the genotype and phenotype of the first-generation offspring?

• Genotype pp; phenotype : white flowers

• Genotype ; PP. ; phenotype purple flowers

• Genotype; Pp ; phenotype; white flowers

• Genotype; Pp. ; phenotype; purple flowers

Draw a Punnett square to represent the cross of two hybrid pea plants with yellow pea pods (genotype Yy). What are the genotypes and phenotypes of the offspring?

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A plant with blue flowers is crossed with a plant with purple flowers. Flower color for this plant is a codominant trait. What will the offspring's flowers look like?

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The lynxes of an area are split into two populations by a river. The population on the north side of the river experiences much colder weather than the population on the south side. Both populations contain individuals with thicker coats of fur and individuals with thinner coats of fur. Predict how the coats of fur of the two populations will differ after many years.

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What limits natural selection?

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Why can natural selection not produce cats from the dog kind?

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Explain the difference between the creationist’s and evolutionist’s views of natural selection.

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