This quiz works best with JavaScript enabled. Home > Plant > Genetics > Principles Of Genetics – Quiz 43 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Principles Of Genetics Quiz 43 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Whats genotype? A) Physical appearance and inheritance. B) How an animal looks because of genes. C) The genes that an organism carries for a particular trait. D) None of above. Show Answer Correct Answer: C) The genes that an organism carries for a particular trait. 2. Mendel's work on garden pea plants resulted in the discovery that A) Genetic traits of parents always blend together in subsequent generation. B) Genetic traits are passed down to offspring and traceable in a genotype and sometimes in a phenotype. C) Off spring are always identical to parents' phenotype. D) Offspring are never identical to parents' phenotype. Show Answer Correct Answer: B) Genetic traits are passed down to offspring and traceable in a genotype and sometimes in a phenotype. 3. Both traits are present in hybrid offspring, but without blending. A) Codominance. B) Incomplete dominance. C) Multiple alleles. D) Simple dominance. Show Answer Correct Answer: A) Codominance. 4. A ..... organism is the offspring of many generations of organisms that have the same trait. A) Dominant. B) Probability. C) Purebred. D) None of above. Show Answer Correct Answer: C) Purebred. 5. Synonymous (same) name for heterozygous: A) Heredity. B) Homozygous. C) Hyperactive. D) Hybrid. Show Answer Correct Answer: D) Hybrid. 6. In a Punnett square, all four predicted offspring are heterozygous where brown fur is dominant over white. Which statement is true? A) All four offspring have brown fur. B) Half of the offspring have white fur; half have brown fur. C) 75% have brown fur. D) 25% have brown fur. Show Answer Correct Answer: A) All four offspring have brown fur. 7. When Gregor Mendel crossed a tall plant with a short plant, the F1 (offspring) plants inherited A) One allele from each parent. B) Two alleles from each parent. C) Three alleles from each parent. D) Four alleles from each parent. Show Answer Correct Answer: A) One allele from each parent. 8. A pedigree CAN be used to A) Determine whether a trait is inherited. B) Show how a trait is passed from one generation to the next. C) Determine whether an allele is dominant or recessive. D) All of the above. Show Answer Correct Answer: D) All of the above. 9. In case red flower colour is dominant to white flower colour which of these statements is correct: A) All red-flowered plants from red flowered plants. B) A few red-flowered plants from red-flowered plants. C) Ration of red-flowered plants from white-flowered hybrid plants is 1:1. D) Only white-flowered plants from white-flowered plants. Show Answer Correct Answer: D) Only white-flowered plants from white-flowered plants. 10. If you sequence short pieces of DNA and then use a computer to find overlapping sequences that map to a much longer DNA fragment, you are using A) Genomic. B) Hapmaps. C) Shotgun sequencing. D) Open reading frame analysis. Show Answer Correct Answer: C) Shotgun sequencing. 11. Meiosis will start with one cell with a full set of chromosomes and end with ..... A) 4 cells, each with half the amount of chromosomes. B) 4 cells, each with full set of chromosomes. C) 2 cells, each with half the amount of chromosomes. D) 2 cells, each with full set of chromosomes. Show Answer Correct Answer: A) 4 cells, each with half the amount of chromosomes. 12. When Gregor Mendel crossed a tall plant with a short plant, the F1 plants inherited A) One allele from each parent. B) Two alleles from each parent. C) Three alleles from each parent. D) Four alleles from each parent. Show Answer Correct Answer: A) One allele from each parent. 13. Haploid means ..... A) Cells have double the amount of chromosomes as the original cell. B) Cells have half the amount of chromosomes as the original cell. C) Cells have 1/4 of the chromosomes as the original cell. D) Cells choose how many chromosomes they want it's a free country!. Show Answer Correct Answer: B) Cells have half the amount of chromosomes as the original cell. 14. How many chromosomes are shown in a normal human karyotype? A) 46. B) 23. C) 2. D) 44. Show Answer Correct Answer: A) 46. 15. An alternative form of a gene is called a ..... A) Chromosome. B) Trait. C) Genotype. D) Allele. Show Answer Correct Answer: D) Allele. 16. Which of the following is a hybrid? A) BB. B) Bb. C) Bb. D) None of above. Show Answer Correct Answer: B) Bb. 17. The two-letter code that describes the genetic traits of an organism is called a- A) Phenotype. B) Genotype. C) Physical Appearance. D) Intelligence. Show Answer Correct Answer: B) Genotype. 18. T = tall and t = shortWhat is the phenotype for Tt? A) Short. B) Tall. C) Medium sized. D) Neither tall or short. Show Answer Correct Answer: B) Tall. 19. Genetics A) Gene located on a sex chromosome. B) Scientific study of heredity. C) Sex cells. D) Genetic Makeup of an organism. Show Answer Correct Answer: B) Scientific study of heredity. 20. Which one of these was not the result of Mendel's first experiments A) When Mendel crossed true breed purple flowers with true breed white flowers, all of the offspring in the F1 generation had purple flowers. B) After the F1 generation was left to self-pollinate, the F2 generation resulted in 705 purple flowered plants and 224 white flowered plants. C) Mendel found out that If the two alleles of a particular gene present in an individual are the same, the individual is said to be homozygous. D) Ratio= 705:224 OR 3:1. Show Answer Correct Answer: C) Mendel found out that If the two alleles of a particular gene present in an individual are the same, the individual is said to be homozygous. ← 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