Post-quiz: 3.1 Monohybrid Cross and Punnett Squares

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For the information necessary in completing this quiz, refer to Web Tutorial 3.1 Monohybrid Cross and Punnett Squares and Section 3.2 The Monohybrid Cross Reveals How One Trait Is Transmitted from Generation to Generation in your textbook.

This activity contains 10 questions.

Mendel's plants in the parental or P₁ generation were true-breeding. The phrase 'true-breeding' means that these peas came from plants that are __.

homozygouscrossedhaploidmutantheterozygous

How would the dwarf trait that disappeared in the first filial (F₁) generation be described?

heterozygousdominanthomozygousrecessivehaploid

Mendel's cross of the true-breeding round and wrinkled parents produced all round progeny peas in the F₁ generation. This is the P₁ generation of a __.

monohybrid crossback crossself crosstest crossgenetic cross

If a home garden is planted with all hybrid, round peas, what proportions would be observed in the progeny? (The wrinkled trait is recessive.)

all wrinkled2/4 round and 2/4 wrinkledall round1/4 round and 3/4 wrinkled3/4 round and 1/4 wrinkled

A pea plant that is heterozygous for the dwarf gene (Dd) will be __.

tallshortextra talldeadintermediate in height

A plant that has the genotype DD is said to be __.

heterozygouspolyploidmutanthomozygoushaploid

A plant with the genotype Dd will produce gametes containing which alleles?

DD onlyD or dd onlyDD, Dd and Dd gametesD only

A test cross is designed to determine the genotype of a parent with the dominant phenotype. A test cross produces progeny that are ½ tall and ½ dwarf. What is the genotype of the tall parent?

DdDDDddd

Mendel also studied other pea traits. He crossed two true breeding plants, one with purple flowers and one with white flowers. All of the progeny had purple flowers. The purple phenotype is said to be __.

diploiddominantrecessivehaploidmutant

If a plant that is heterozygous for purple flowers is crossed with a plant that is white, what proportion of the progeny will have white flowers? (Purple is dominant.)

100%25%none75%50%

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Post-quiz: 3.1 Monohybrid Cross and Punnett Squares

Mendel's plants in the parental or P1 generation were true-breeding. The phrase 'true-breeding' means that these peas came from plants that are __.

How would the dwarf trait that disappeared in the first filial (F1) generation be described?

Mendel's cross of the true-breeding round and wrinkled parents produced all round progeny peas in the F1 generation. This is the P1 generation of a __.

If a home garden is planted with all hybrid, round peas, what proportions would be observed in the progeny? (The wrinkled trait is recessive.)

A pea plant that is heterozygous for the dwarf gene (Dd) will be __.

A plant that has the genotype DD is said to be __.

A plant with the genotype Dd will produce gametes containing which alleles?

A test cross is designed to determine the genotype of a parent with the dominant phenotype. A test cross produces progeny that are ½ tall and ½ dwarf. What is the genotype of the tall parent?

Mendel also studied other pea traits. He crossed two true breeding plants, one with purple flowers and one with white flowers. All of the progeny had purple flowers. The purple phenotype is said to be __.

If a plant that is heterozygous for purple flowers is crossed with a plant that is white, what proportion of the progeny will have white flowers? (Purple is dominant.)

Mendel's plants in the parental or P₁ generation were true-breeding. The phrase 'true-breeding' means that these peas came from plants that are __.

How would the dwarf trait that disappeared in the first filial (F₁) generation be described?

Mendel's cross of the true-breeding round and wrinkled parents produced all round progeny peas in the F₁ generation. This is the P₁ generation of a __.