This quiz works best with JavaScript enabled. Home > Plant > Genetics > Principles Of Genetics – Quiz 23 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Principles Of Genetics Quiz 23 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If an organism's diploid number is 12, its haploid number is A) 12. B) 6. C) 24. D) 3. Show Answer Correct Answer: B) 6. 2. Name the pattern:both traits are present in hybrid offspring, but without blending A) Incomplete dominance. B) Multiple alleles. C) Polygenic inheritance. D) Codominance. Show Answer Correct Answer: D) Codominance. 3. Who is often referred to as the "Father of Genetics?" A) Anton van Leeuwenhoek. B) Charles Darwin. C) Rosalind Franklin. D) Gregor Mendel. Show Answer Correct Answer: D) Gregor Mendel. 4. Heterozygous means what? A) Same. B) Different. C) AA. D) Combination of both genes. Show Answer Correct Answer: B) Different. 5. What are the results when a black rooster is paired with a white hen. If the feather color is an example of codominance what would the offspring's feathers look like? A) Black with white speckles. B) Black and white feathers. C) Only black feathers. D) Only white feathers. Show Answer Correct Answer: B) Black and white feathers. 6. The principle of ..... states that alleles segregate during gamete formation. A) Multiple alleles. B) Independent assortment. C) Segregation. D) None of above. Show Answer Correct Answer: C) Segregation. 7. Ranchers historically have used genetics to produce new varieties of cattle. Buffalo can tolerate both hot and cold temperatures but have meat that is not as tasty and tender as beef. Cattle that are subjected to severe temperature extremes produce meat that is neither tender nor good-tasting. What good qualities might a "beefalo" (cross between cattle and buffalo) possess? A) Animals with good-tasting meat but not tolerance to heat. B) Animals that tolerate heat and cold but do not have good-tasting meat. C) Animals that tolerate cold but do not have good-tasting meat. D) Animals that tolerate heat and cold and have good-tasting meat. Show Answer Correct Answer: D) Animals that tolerate heat and cold and have good-tasting meat. 8. In guinea pigs, brown fur is dominant to white fur. If conducting a testcross with a female brown guinea pig, which of the following male guinea pigs would you select for the experiment? (Hint:you need to remember what a testcross is) (3B2) A) Heterozygous white. B) Homozygous white. C) Heterozygous brown. D) Homozygous brown. Show Answer Correct Answer: B) Homozygous white. 9. The pollen of flower with red (RR) flowers is transferred to a plant with white (rr) flowers. The flower produced from this match is pink. What kind of dominance does this represent? A) Recessive dominance. B) Incomplet dominance. C) Codominance. D) Assertive dominance. Show Answer Correct Answer: B) Incomplet dominance. 10. When Mendel crossed true-breeding tall plants (TT) with true-breeding short plants (tt), all of the offspring were tall because ..... A) The allele for tall plants is recessive. B) The allele for short plants is dominant. C) The allele for tall plants is dominant. D) None of above. Show Answer Correct Answer: C) The allele for tall plants is dominant. 11. During what phase of the cell cycle is DNA replicated? A) G1 phase. B) S phase. C) G2 phase. D) M phase. Show Answer Correct Answer: B) S phase. 12. Sequence of DNA that codes for a protein. A) Heterozygous. B) Allele. C) Gene. D) Genetics. Show Answer Correct Answer: C) Gene. 13. What is an inherited trait? A) A trait that you recieve from your parent. B) Ice Cream Cone. C) Gatorade. D) The change of an animal. Show Answer Correct Answer: A) A trait that you recieve from your parent. 14. What is the probability that a homozygous DOMINANT parent and a homozygous recessive parent will have heterozygous offspring? A) 0%. B) 25%. C) 50%. D) 100%. Show Answer Correct Answer: D) 100%. 15. Shows possible outcomes of a genetic cross ..... gives you an idea of the possible genotypes and phenotypes of offspring ..... A) Alles. B) Genotype. C) Phenotype. D) Punnett square. Show Answer Correct Answer: D) Punnett square. 16. B=brown eyesb= blue eyesWhat is true about these two brothers that have brown eyes:One has genotype BB the other Bb. A) They have same phenotype and genotype. B) They have different genotypes and phenotypes. C) They have same phenotype but different genotypes. D) They have same genotype but different phenotypes. Show Answer Correct Answer: C) They have same phenotype but different genotypes. 17. What does meiosis produce? A) Gametes (sex cells). B) Somatic (body cells). C) Bacteria. D) Fungus. Show Answer Correct Answer: A) Gametes (sex cells). 18. A normal human diploid zygote contains A) Chromosomes. B) 46 chromosomes. C) 44 chromosomes. D) XXY chromosomes. Show Answer Correct Answer: B) 46 chromosomes. 19. What kind of allele is GG? A) Homozygous dominant. B) Homozygous recessive. C) Heterozygous. D) None of above. Show Answer Correct Answer: A) Homozygous dominant. 20. In beetles, red body color is incompletely dominant to yellow. What is the phenotype of a beetle that is Rr? A) Orange. B) Black. C) Red. D) Yellow. Show Answer Correct Answer: A) Orange. ← PreviousNext →Related QuizzesPlant 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books