This quiz works best with JavaScript enabled. Home > Plant > Principles Of Genetics – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Principles Of Genetics Quiz 22 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Thomas Hunt Morgan worked with which organisms to show that Mendel's principles applied to living things other than plants. A) Pea plants. B) Zebras. C) Fruit flies. D) Bearded dragons. Show Answer Correct Answer: C) Fruit flies. 2. Having freckles is dominant (F), and not having freckles is recessive (f). A mother has Ff and a father has Ff. If they have a child, which genotype will make their child not have freckles? A) FF. B) Ff. C) FF. D) Ff. Show Answer Correct Answer: B) Ff. 3. In pea plants, the allele for green pods (G) is dominant and the allele for yellow pods (g) is recessive. A researcher crosses two green pea plants, and the in F1 generation, all of the offspring exhibit green pods. Can you determine the genotypes of both parents A) No, they could be Gg and GG OR GG and GG. B) Yes, they are Gg and GG. C) Yes, they are GG and GG. D) No, they could be Gg and Gg OR GG and Gg. Show Answer Correct Answer: A) No, they could be Gg and GG OR GG and GG. 4. What symbol is used for a dominant trait? A) Capital letter. B) Lower case letter. C) Underlined letter. D) Italicized letter. Show Answer Correct Answer: A) Capital letter. 5. Meiosis produces ..... in gametes. A) Enzymes. B) Zygotes. C) Genetic variation. D) Forty-six chromosomes. Show Answer Correct Answer: C) Genetic variation. 6. If a ..... allele is present, its trait will appear in the organism. A) Dominant. B) Purebred. C) Probability. D) None of above. Show Answer Correct Answer: A) Dominant. 7. This phenotype is more likely to be prominent in offspring A) Phenotype. B) Dominant genotype. C) Recessive Phenotype. D) Monotypes. Show Answer Correct Answer: B) Dominant genotype. 8. Which phase best describes the process of meiosis? A) Occurs in body cells. B) Results in genetically identical cells. C) Happens only in haploid cells. D) Produces haploid gametes. Show Answer Correct Answer: D) Produces haploid gametes. 9. A person who codes for a trait but it is not expressed is called A) Epistasis. B) Heterozygous. C) Carrier. D) Homozygous. Show Answer Correct Answer: C) Carrier. 10. What does genotype mean? A) An organism has two identical alleles for a trait. B) An organism has two different alleles for a trait. C) The physical characteristics of a trait. D) The actual genetic makeup of a characteristic. Show Answer Correct Answer: D) The actual genetic makeup of a characteristic. 11. Heredity describes how ..... are passed down from parents to offspring. A) Traits. B) Food & water. C) Inheritance & money. D) Diseases. Show Answer Correct Answer: A) Traits. 12. The combination of alleles (letters) that is used to describe dominant and recessive alleles. A) Phenotype. B) Genotype. C) Alleles. D) Punnet Square. Show Answer Correct Answer: B) Genotype. 13. What is the process that occurs in prophase I where two chromosomes exchange genetic material? A) Sharing. B) Crossing over. C) Splitting. D) None of the above. Show Answer Correct Answer: B) Crossing over. 14. Polygenic Trait A) A specific characteristic of an individual. B) Likelihood that a particular event will occur. C) Trait controlled by two or more genes. D) None of above. Show Answer Correct Answer: C) Trait controlled by two or more genes. 15. James is conducting an experiment to test the effect of insecticides on frogs. What is the control group in his experiment? A) The frogs that were exposed to 15 ml of insecticide. B) The frogs that did not survive the experiment. C) The frogs that were not exposed to the insecticides. D) The frogs that were exposed to 30 ml of insecticide. Show Answer Correct Answer: C) The frogs that were not exposed to the insecticides. 16. Sexual reproduction would be more advantageous than asexual reproduction for organisms living in an environment that is diverse and undergoes frequent changes A) Sometimes true. B) False. C) True. D) None of above. Show Answer Correct Answer: C) True. 17. The scientific study of heredity is known as ..... A) Heredity. B) Genetics. C) DNA. D) None of above. Show Answer Correct Answer: B) Genetics. 18. What was the first generation of plants called that resulted from crossing the two parent plants? A) F1. B) F2. C) P. D) None of above. Show Answer Correct Answer: A) F1. 19. A sudden change in the molecular structure of a gene, called a(n) ....., may occur spontaneously or may be caused by an environmental event such as radiation. A) Devastation. B) Deviation. C) Mutation. D) Alteration. Show Answer Correct Answer: C) Mutation. 20. Whats a dihybrid cross A) An individual that is heterozygous at two genetic zygous. B) A trait controlled by a gene on a sex chromosome. C) A mating in which the homozygous recessive individuals of unknown genotype that have the dominant phenotype. D) None of above. Show Answer Correct Answer: A) An individual that is heterozygous at two genetic zygous. ← PreviousNext →Related QuizzesPrinciples Of Genetics Quiz 1Principles Of Genetics Quiz 2Principles Of Genetics Quiz 3Principles Of Genetics Quiz 4Principles Of Genetics Quiz 5Principles Of Genetics Quiz 6Principles Of Genetics Quiz 7Principles Of Genetics Quiz 8Principles Of Genetics Quiz 9Principles Of Genetics Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books