This quiz works best with JavaScript enabled. Home > Agriculture > Plant > Genetics > Principles Of Genetics – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Principles Of Genetics Quiz 12 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Females 23rd chromosome pair is A) XY. B) XX. C) YX. D) None of above. Show Answer Correct Answer: B) XX. 2. Who is Gregor Mendel? A) A man that cared for plants. B) A monk that experimented with plants to study the inheritance of traits. C) A scientists assistant that helped with the discovery of Genetics. D) An animal breeder that studied the inheritance of traits. Show Answer Correct Answer: B) A monk that experimented with plants to study the inheritance of traits. 3. If long ears (E) are dominant over short ears (e), what is the phenotype of an organism that has genotype ee? A) Medium length ears. B) Long ears. C) One long ear; one short ear. D) Short ears. Show Answer Correct Answer: D) Short ears. 4. What is an "allele"? A) A specific characteristic that varies from one individual to another. B) The different form of a gene like "T" vs "t". C) The offspring of crosses between parents with different traits. D) Chemical factors that determine phenotypes. Show Answer Correct Answer: B) The different form of a gene like "T" vs "t". 5. The best genome representation for heterozygous A) AA. B) Aa. C) Aa. D) None of above. Show Answer Correct Answer: B) Aa. 6. Asexual reproduction has certain advantages. This sort of reproduction needs only one parent and can occur by budding and fragmentation. What is an advantage of sexual reproduction over asexual reproduction? A) Finding a mate. B) Greater genetic variation. C) Exact copy of the genes. D) Reproduce quickly. Show Answer Correct Answer: B) Greater genetic variation. 7. What is a series of events a cell goes through as they grow and divide? A) Cell Division. B) Cytokinesis. C) Cell Cycle. D) Mitosis. Show Answer Correct Answer: C) Cell Cycle. 8. How many alleles does an individual have for each trait? A) 1. B) 2. C) 4. D) 3. Show Answer Correct Answer: B) 2. 9. Cells of organisms must replicate for what purposes? A) Growth. B) Repair of damaged cells. C) Reproduction. D) All of the above. Show Answer Correct Answer: D) All of the above. 10. How many alleles affect blood type? A) 3. B) 10. C) 5. D) 1. Show Answer Correct Answer: A) 3. 11. The Punnett square in Figure 11-2 shows that the gene for pea shape and the gene for pea color A) Have the same alleles. B) Are always homozygous. C) Assort independantly. D) Are linked. Show Answer Correct Answer: C) Assort independantly. 12. Calico cats are female because A) The males die during embryonic development. B) A male inherits only one of the two X-linked genes controlling hair color. C) Only females can have Barr bodies. D) The Y chromosome has a gene blocking orange coloration. Show Answer Correct Answer: B) A male inherits only one of the two X-linked genes controlling hair color. 13. Recessive alleles are- A) Capital. B) Lowercase. C) Both. D) Neither. Show Answer Correct Answer: B) Lowercase. 14. Condition in which one allele does not totally mask the other allele A) Incomplete Dominance. B) Phenotype. C) Multiple Alleles. D) None of above. Show Answer Correct Answer: A) Incomplete Dominance. 15. Which of the following is a possible result of a disruption in the cell cycle? A) Cancer. B) Protein synthesis. C) Photosynthesis. D) Cellular respiration. Show Answer Correct Answer: A) Cancer. 16. An example of a genotype is A) Tt. B) Tall. C) Wrinkled. D) 50%. Show Answer Correct Answer: A) Tt. 17. What do you mean by law of dominance? A) When offspring shows the characters of generation. B) When Offspring of cross breed parent only show dominant characters in F1 generation. C) When offspring of cross breed parent only show dominant characters in F2 generation. D) In F2 generation both the character which is governed by gene are separated. Show Answer Correct Answer: B) When Offspring of cross breed parent only show dominant characters in F1 generation. 18. If a pea plant were homozygous recessive for height, how would its alleles be represented? A) Tt. B) Tt. C) TT. D) TT. Show Answer Correct Answer: A) Tt. 19. A tall plant (TT) is crossed with a short plant (tt). If the tall F1 pea plants are allowed to self-pollinate, A) The offspring will be of medium height. B) All of the offspring will be tall. C) All of the offspring will be short. D) The offspring can be tall or short. Show Answer Correct Answer: D) The offspring can be tall or short. 20. What do the letters in each box of a Punnett square tell you? A) How to assemble a genetic map of the chromosome on which the alleles are located. B) The full pedigree of a species. C) That both parents show characteristics of the dominant trait. D) The possible combinations of alleles in offspring based on the parents' genetic makeup. Show Answer Correct Answer: D) The possible combinations of alleles in offspring based on the parents' genetic makeup. 21. Gregor Mendel is commonly referred to as which of the following? A) The Father of Life. B) The Father of Genetics. C) The Father of Biology. D) None of above. Show Answer Correct Answer: B) The Father of Genetics. 22. Different forms of a gene are called ..... A) Alleles. B) Traits. C) Genotype. D) Phenotype. Show Answer Correct Answer: A) Alleles. 23. Cystic fibrosis can be caused be A) Nondisjunction of a sex chromosomes. B) Nondisjunction of an autosome. C) Deletion of an entire gene from a chromosomes. D) A change of three base pairs in DNA. Show Answer Correct Answer: D) A change of three base pairs in DNA. 24. A strand of DNA with the sequence A-C-T-T-G serves as a template to form a strand of mRNA with the sequence U-G-A-A-C. During which process would this happen? A) Translation. B) Transcription. C) Meiosis. D) Replication. Show Answer Correct Answer: B) Transcription. 25. A unit of biological factor (DNA) that is inherited from one generation to the next A) Trait. B) Gene. C) Allele. D) Hybrid. Show Answer Correct Answer: B) Gene. 26. Reproductive process in which fertilization occurs within a single plant A) Self-Pollinating. B) Monohybrid. C) Homozygous Recessive. D) None of above. Show Answer Correct Answer: A) Self-Pollinating. 27. What did Mendel discovery in his second experiment? A) The recessive trait reappeared!. B) The dominant trait reappeared!. C) The ratio was a 1:4. D) All the offspring were true-breeding. Show Answer Correct Answer: A) The recessive trait reappeared!. 28. A normal human egg cell contains A) 22 autosomes and one X-chromosome. B) 22 autosomes and one Y-chromosome. C) 44 autosomes and XX-chromosomes. D) 44 autosomes and XY-chromosomes. Show Answer Correct Answer: A) 22 autosomes and one X-chromosome. 29. Who is the father of genetics? A) Gregor Mendel. B) Donald Trump. C) Thomas Morgan. D) Pena Nieto. Show Answer Correct Answer: A) Gregor Mendel. 30. What is a punnett square? A) A square used to predict the possible genotypes of offspring in a given cross. B) A square used to predict the possible birth rate of offspring. C) A square used to predict the possible behavioral characteristics an offspring could have. D) None of the above. Show Answer Correct Answer: A) A square used to predict the possible genotypes of offspring in a given cross. ← PreviousNext →Related QuizzesPlant QuizzesAgriculture 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books