A manual contains instructions for how to build a variety of structures using a set of interlocking bricks. If this scenario is used as a model for genetic information, which statement is correct?(1 point) Responses The manual is a chromosome. The manual is a chromosome. Each structure is a gene. Each structure is a gene. Each set of instructions is a protein. Each set of instructions is a protein. The interlocking bricks are the chromosomes. The interlocking bricks are the chromosomes. Question 2 Which describes the difference between mitosis and meiosis?(1 point) Responses Mitosis is one division resulting in two identical daughter cells. Meiosis is two divisions resulting in four daughter cells. Each has half the number of chromosomes as the parent cell. Mitosis is one division resulting in two identical daughter cells. Meiosis is two divisions resulting in four daughter cells. Each has half the number of chromosomes as the parent cell. Mitosis is two divisions resulting in four daughter cells, each with half the number of chromosomes as the parent cell. Meiosis is one division resulting in two identical daughter cells. Mitosis is two divisions resulting in four daughter cells, each with half the number of chromosomes as the parent cell. Meiosis is one division resulting in two identical daughter cells. Mitosis is only involved in the division of sex cells. Meiosis is only involved in the division of cells for growth and repair in the body. Mitosis is only involved in the division of sex cells. Meiosis is only involved in the division of cells for growth and repair in the body. The steps in mitosis include prophase, metaphase, anaphase, and telophase. The steps in meiosis include only metaphase I and II and anaphase I and II. The steps in mitosis include prophase, metaphase, anaphase, and telophase. The steps in meiosis include only metaphase I and II and anaphase I and II. Question 3 In pea plants, the allele for round peas, R, is dominant over the allele for wrinkled peas, r. What is the phenotype of a pea plant with genotype Rr?(1 point) Responses some round and some wrinkled some round and some wrinkled round round wrinkled wrinkled slightly wrinkled slightly wrinkled Question 4 What determines a trait of an organism?(1 point) Responses the number of dominant alleles the number of dominant alleles the combination of its alleles the combination of its alleles its phenotype its phenotype the number of copies of the gene the number of copies of the gene Question 5 Which statement is accurate about dominant alleles?(1 point) Responses They are expressed whenever present. They are expressed whenever present. They are indicated by lowercase letters. They are indicated by lowercase letters. They are expressed only when a recessive allele is not present. They are expressed only when a recessive allele is not present. They result in the trait of shortness in pea plants. They result in the trait of shortness in pea plants. Question 6 Consider the following scenario: In a certain dog breed, the allele B for a black coat is dominant, and the allele b for a spotted coat is recessive. What genotypes for this dog breed would lead to a spotted phenotype? (1 point) Responses Bb Bb BB and bb BB and bb bb bb BB BB Question 7 A Punnett square is a mathematical model of genetic outcomes based on which of these?(1 point) Responses genetic markers genetic markers traits of prior offspring traits of prior offspring probability probability exact outcomes exact outcomes Question 8 What is the main benefit of genetic biodiversity?(1 point) Responses Genetic biodiversity helps populations adapt to environmental changes. Genetic biodiversity helps populations adapt to environmental changes. Genetic biodiversity helps individuals produce more offspring. Genetic biodiversity helps individuals produce more offspring. Genetic biodiversity helps populations avoid predators. Genetic biodiversity helps populations avoid predators. Genetic biodiversity helps individuals compete with each other. Genetic biodiversity helps individuals compete with each other. Question 9 Which statement is true?(1 point) Responses Neutral mutations occur when a mutation is found in a DNA region and results in a harmful disease. Neutral mutations occur when a mutation is found in a DNA region and results in a harmful disease. Neutral mutations occur when a mutation in a DNA region results in the same sequence as the original. Neutral mutations occur when a mutation in a DNA region results in the same sequence as the original. Neutral mutations occur when a mutation in a DNA region provides an advantage that helps the organism survive. Neutral mutations occur when a mutation in a DNA region provides an advantage that helps the organism survive. Neutral mutations occur when a mutation is found in a DNA region that codes for proteins. Neutral mutations occur when a mutation is found in a DNA region that codes for proteins. Question 10 Three plants are grown in the same environmental conditions with equal sunlight, water, and space to grow. One plant grew to have a purple flower while the other two grew white flowers. What is the most likely conclusion that can be made for the change in flower color?(1 point) Responses Genetic factors caused the differences in flower color. Genetic factors caused the differences in flower color. Environmental conditions caused the differences in flower color. Environmental conditions caused the differences in flower color. Environmental factors caused a genetic mutation that caused the differences in flower color. Environmental factors caused a genetic mutation that caused the differences in flower color. Genetic factors caused environmental changes that caused the differences in flower color. Genetic factors caused environmental changes that caused the differences in flower color. Question 11 The physical expression of a trait in an organism is known as the (1 point) Responses chromosome chromosome genotype genotype phenotype phenotype double helix double helix Skip to navigation
