This quiz works best with JavaScript enabled. Home > Plant > Principles Of Genetics – Quiz 35 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Principles Of Genetics Quiz 35 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Name the pattern:two or more genes interact to produce a single trait A) Incomplete dominance. B) Multiple alleles. C) Polygenic inheritance. D) Codominance. Show Answer Correct Answer: C) Polygenic inheritance. 2. Human body cells that have 46 chromosomes are called A) Haploid cells. B) Diploid cells. C) Gametes. D) Sex cells. Show Answer Correct Answer: B) Diploid cells. 3. Polymerase Chain Reaction A) Term used to refer to an organism that contains genes from other organism. B) DNA produced by combining DNA from different sources. C) The technique used by biologists to make many copies of a particular gene. D) None of above. Show Answer Correct Answer: C) The technique used by biologists to make many copies of a particular gene. 4. A ..... ..... is a chart that is used to calculate the probability of an offspring's combination of alleles. A) Punnett Square. B) Mendel Square. C) James Square. D) None of above. Show Answer Correct Answer: A) Punnett Square. 5. The passing of characters from parents to offspring is called? A) Monohybrid cross. B) Heredity. C) True breeding. D) Genetics. Show Answer Correct Answer: B) Heredity. 6. In dogs, wire hair (H) is dominant to smooth hair (h). In a cross of a homozygous wire-haired dog with a smooth-haired dog, what will be the phenotypic ratio of the F1 Generation? A) 0% wire-haired. B) 25% wire-haired. C) 50% wire-haired. D) 100% wire-haired. Show Answer Correct Answer: D) 100% wire-haired. 7. Which is an example of selective breeding? A) A scientist produced a lamb from a frozen cell of another adult sheep. B) A scientist maintains a group of retriever dogs by only mating retriever dogs together. C) A scientist produces a bacteria that can make human insulin. D) A scientist changed the genetic make-up of a human's white blood cells to ensure they were healthy. Show Answer Correct Answer: B) A scientist maintains a group of retriever dogs by only mating retriever dogs together. 8. If a rabbit that is heterozygous for black & hairy (BbHh) is crossed with a rabbit that is homozygous for black but hairless hairy (BBhh), how many different phenotypes are their offspring expected to show? A) 2. B) 3. C) 8. D) 16. Show Answer Correct Answer: B) 3. 9. Gametes have A) Homologous chromosomes. B) Twice the number of chromosomes found in body cells. C) Two sets of chromosomes. D) One allele for each gene. Show Answer Correct Answer: D) One allele for each gene. 10. What is a Tay Sach? A) A non inherited disease. B) A dominant disorder. C) A Virus. D) A recessive disorder. Show Answer Correct Answer: D) A recessive disorder. 11. Linked genes A) Are never separated. B) Are on the same chromosome. C) Assort independently. D) Are always recessive. Show Answer Correct Answer: B) Are on the same chromosome. 12. When an organism has two of the same alleles, it is called A) Homozygous. B) Heterozygous. C) Recessive. D) Dominant. Show Answer Correct Answer: A) Homozygous. 13. An allele represented by a capital letter. Masks or overshadows the weaker allele. A) Big. B) Recessive. C) Dominant. D) Small. Show Answer Correct Answer: C) Dominant. 14. When do the symptoms of Huntington's appear? A) 0 - 10 years old. B) 10 - 30 years old. C) 30 - 50 years old. D) 50 - 70 years old. Show Answer Correct Answer: C) 30 - 50 years old. 15. Mendel's principle of independent assortment states that ..... A) Phenotypes are typically identical in offspring of the F1 generation. B) Genes for different traits always stay together during the formation of gametes. C) Students who are cunning and resourceful are placed in Slytherin House. D) Genes for different traits can segregate independently during the formation of gametes. Show Answer Correct Answer: D) Genes for different traits can segregate independently during the formation of gametes. 16. In regards to genetics ..... what is the principle of dominance? A) Larger zebras will out compete their smaller counterparts for food. B) Recessive alleles will "beat out" the dominant allele 75% of the time. C) Some genes are almost always inherited together. D) Some alleles are dominant and others are recessive. Show Answer Correct Answer: D) Some alleles are dominant and others are recessive. 17. Which of the following is NOT an inherited trait? A) Reading ability. B) Blood type. C) Hair color. D) Eye color. Show Answer Correct Answer: A) Reading ability. 18. What was the ratio of Mendel's F2 generation for the two-factor cross? A) 9:3:3:1. B) 9:6:3:1. C) 8:4:2:1. D) 4:3:2:1. Show Answer Correct Answer: A) 9:3:3:1. 19. Co dominance means A) Progeny resembles one of the parent. B) Progeny resembles none of the protein. C) Progeny resembles both parents. D) Progeny is a blend of both parents. Show Answer Correct Answer: C) Progeny resembles both parents. 20. A hybrid is the offspring of parents that have ..... alleles for a trait. A) The same. B) Different. C) Two. D) Four. Show Answer Correct Answer: B) Different. ← 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