This quiz works best with JavaScript enabled. Home > Plant > Principles Of Genetics – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Principles Of Genetics Quiz 11 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The outward physical appearance and behavior of an organism as a result of its genotype A) Dominant. B) Phenotype. C) Recessive. D) Punnett Square. Show Answer Correct Answer: B) Phenotype. 2. Which of the following demonstrates non-disjunction during the formation of sperm? A) 22 autosomes and one Y-chromosome. B) 22 autosomes and one X-chromosome. C) 44 autosomes and two X-chromosomes. D) 23 autosomes and one X-chromosome. Show Answer Correct Answer: D) 23 autosomes and one X-chromosome. 3. In a cross between flowers where white is dominant and purple is recessive, which allele combination represents a purple flower? A) WW. B) Ww. C) Pp. D) Ww. Show Answer Correct Answer: B) Ww. 4. Which of the following is true about people who are heterozygous for sickle cell disease? A) They are resistant to malaria. B) They have some normal hemoglobin in their red blood cells. C) They are generally healthy. D) All of the above. Show Answer Correct Answer: D) All of the above. 5. A genotype refers to A) The alleles that manifest and we can see (attached earlobe). B) A homozygous nature. C) The alleles for a gene written in symbols (RR, Rr rr). D) None of above. Show Answer Correct Answer: C) The alleles for a gene written in symbols (RR, Rr rr). 6. Phenotype A) Genetic makeup of an organism. B) Term used to refer to a cell that contains only a single set of genes. C) One of different forms of gene. D) None of above. Show Answer Correct Answer: A) Genetic makeup of an organism. 7. Males are more likely to suffer from a sex-linked disease or disorder because A) Males are the weaker sex. B) Males have less DNA. C) Males have 1 X chromosome, so the disorder is more likely to be expressed. D) None of above. Show Answer Correct Answer: C) Males have 1 X chromosome, so the disorder is more likely to be expressed. 8. Clone A) DNA produced by combining DNA from different sources. B) Member of a population of genetically identical cells produced from a single cell. C) Term used to refer to an organism that contains genes from other organism. D) None of above. Show Answer Correct Answer: B) Member of a population of genetically identical cells produced from a single cell. 9. Yellow is dominant over green. If a heterozygous plant were crossed with a homozygous recessive plant, what percent of the progeny are green? A) 0%. B) 25%. C) 50%. D) 75%. Show Answer Correct Answer: C) 50%. 10. What is a males 23rd chromosome pair A) XY. B) XX. C) YX. D) None of above. Show Answer Correct Answer: A) XY. 11. What is Bb? A) Recessive. B) Double Dominant. C) Heterozygous. D) I don't know . Show Answer Correct Answer: C) Heterozygous. 12. The alleles that an organism has A) Genotype. B) Phenotype. C) Chromosome. D) Recessive. Show Answer Correct Answer: A) Genotype. 13. Which of the following is an example of a homozygous dominant genotype? A) RR. B) Rr. C) Rr. D) None of above. Show Answer Correct Answer: A) RR. 14. The heterozygous condition of sickle cell anemia (a recessive disorder) results in resistance to malaria. If a homozygous normal father and a heterozygous mother have a child, what are the chances of that child being resistant to malaria but not having sickle cell anemia? A) 25%. B) 50%. C) 75%. D) 100%. Show Answer Correct Answer: B) 50%. 15. Which phrase best describes the process of crossing over? A) Pairs of homologous chromosomes exchange segments. B) Pairs of sister chromatids exchange segments. C) Pairs of homologous chromosomes become linked. D) Pairs of sister chromatids become linked. Show Answer Correct Answer: A) Pairs of homologous chromosomes exchange segments. 16. In the ABO blood group system in humans, if a person of type-B blood has children with a person of type-AB blood, what blood types could their children have? A) Type-AB, type-A, and type-B. B) Type-A and type-B. C) Type-B and type-AB. D) Type-AB, type-A, type-B, and type-O. Show Answer Correct Answer: A) Type-AB, type-A, and type-B. 17. Which of these would best be described as a phenotype? A) Blue eyes. B) Mutation. C) Bb. D) Tt. Show Answer Correct Answer: A) Blue eyes. 18. How many chromosomes are in a human gamete? A) 46. B) 23. C) 22. D) 44. Show Answer Correct Answer: B) 23. 19. Homologous A) Term used to refer to a cell that contains only a single set of genes. B) Term used to refer to a cell that contains two sets of homologous chromosomes. C) Term used to refer to chromosomes in which one set comes from the male parent and one set comes from the female parent. D) None of above. Show Answer Correct Answer: C) Term used to refer to chromosomes in which one set comes from the male parent and one set comes from the female parent. 20. In Mendel's experiments, the symbol "gg" represents the ..... recessive genotype for pod color. A) Homozygous. B) Heterozygous. C) Homologous. D) Genomes. Show Answer Correct Answer: A) Homozygous. ← 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