Quiz on Principles of Inheritance of Economic Traits

What are economic traits in plants?

• Traits that are only influenced by environmental factors

• Characteristics that have significant commercial value

• Characteristics that do not affect crop yield

• Traits that are not heritable

Which of the following is an example of a qualitative trait?

• Grain yield

• Flower color

• Plant height

• Leaf area

What type of variation is heritable?

• Non-heritable Variation

• Genotypic Variation

• Environmental Variation

• Phenotypic Variation

Which of the following factors is NOT a source of environmental variance?

• Genetic makeup

• Climate

• Soil type

• Nutrient availability

What is the significance of Mendelian inheritance in plant breeding?

• It allows for the prediction of trait distribution in offspring

• It eliminates the need for environmental considerations

• It is irrelevant to economic traits

• It focuses solely on quantitative traits

Which of the following is a characteristic of quantitative traits?

• Controlled by a single gene

• Easily observable and classified

• Exhibit distinct classes

• Show a continuous range of variations

What is hybridization in plant breeding?

• Inducing mutations in plants

• Crossing genetically different individuals

• Growing plants in different environments

• The process of selecting the best plants

Which trait is an example of a quantitative trait?

• Flower color

• Pod shape

• Seed coat color

• Grain yield

What does polyploidy refer to in plant breeding?

• A method of genetic recombination

• Having more than two sets of chromosomes

• A type of environmental variance

• A form of mutation

What is the role of mutations in plant breeding?

• To create new traits for crop improvement

• To ensure all traits are heritable

• To reduce the need for environmental adaptation

• To eliminate genetic diversity