This quiz works best with JavaScript enabled. Home > Science > Biology > Genetic And Mendel S Law Of Heredity – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Genetic And Mendel S Law Of Heredity Quiz 1 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In a gamete there will be. A) One pair of sex chromosomes. B) Only one sex chromosome. C) No sex chromosomes. D) Only autosomes. Show Answer Correct Answer: B) Only one sex chromosome. 2. Genes control heredity in man and other organisms.This is. A) A bead like structure on the chromosomes. B) A protein molecule. C) A segment RNA. D) A segment of RNA and DNA. Show Answer Correct Answer: D) A segment of RNA and DNA. 3. In all of the Mendel, s experiments the alleles causing a trait were. A) Dominant-recessive. B) Co-dominant. C) Co-recessive. D) Incomplete dominant. Show Answer Correct Answer: A) Dominant-recessive. 4. Which is the correct chronological order? (A) Mendel, s laws of inheritance (B) Darwin, s theory of evolution (C) Blood circulation by Harvey (D) De Vries theory of mutation A) A, B, C, D. B) D, B, C, A. C) B, D, A, C. D) C, B, A, D. Show Answer Correct Answer: D) C, B, A, D. 5. Sugar present in the nucleotides is. A) Hexose sugar. B) Pentose sugar. C) No sugar. D) None of the above. Show Answer Correct Answer: B) Pentose sugar. 6. There are 23 pairs of chromosomes in man, How many types of eggs can woman produce supposing that she is Heterozygous for each of her 23 pairs of chromosomes? A) 23. B) 46. C) 2.3 million. D) 8.4 million. Show Answer Correct Answer: D) 8.4 million. 7. The genotypic ratio in the F2 generation in a monohybrid cross will be. A) 3:1. B) 9:1. C) 3:3. D) 1:9. Show Answer Correct Answer: B) 9:1. 8. When tall Red plant is crossed with dwarf white plant, the F2 generation tall red and dwarf white will occur in the ratio of. A) 3:1. B) 9:1. C) 3:3. D) 1:9. Show Answer Correct Answer: B) 9:1. 9. If a mouse over eight times of its normal size has been produced by introducing human growth hormone gene, the technique involved is called. A) Hybridization. B) Genetic engineering. C) Mutation breeding. D) Hormonal feeding. Show Answer Correct Answer: B) Genetic engineering. 10. A pair of chromosomes determines sex in human beings and, therefore these chromosomes are called sex chromosomes What is the name given to the other chromosomes? A) Autosomes. B) Heterosomes. C) Polysomes. D) Spherosomes. Show Answer Correct Answer: A) Autosomes. 11. If a boy, s father has haemophilia and his mother has one gene for it, what is the chance that the boy will inherit the disease? A) 100%. B) 75%. C) 50%. D) 25%. Show Answer Correct Answer: C) 50%. 12. Law of Independent Assortment A) Every organism has two alleles which separate when gametes are produced. B) Alleles for traits are the same. C) Genes from different traits are inherited independently of one another. D) The allele combination of an organism. Show Answer Correct Answer: C) Genes from different traits are inherited independently of one another. 13. Law of Segregation A) Every organism has two alleles which separate when gametes are produced. B) Alleles for traits are the same. C) Genes from different traits are inherited independently of one another. D) The allele combination of an organism. Show Answer Correct Answer: A) Every organism has two alleles which separate when gametes are produced. 14. A lot of information about linkage in genetics has been obtained by researches on the organism. A) Oenothera. B) Escherichia coli. C) Pisum. D) Drosphila. Show Answer Correct Answer: D) Drosphila. 15. Genes are made of. A) Carbohydrates. B) Poteins. C) Fats. D) Nucleotides. Show Answer Correct Answer: D) Nucleotides. 16. Genes A) The allele combination of an organism. B) Different forms of genes. C) Alleles for traits are the same. D) Factors that determine traits. Show Answer Correct Answer: D) Factors that determine traits. 17. An organism that breeds true for a particular character producing identical gametes is called. A) Hemizygous. B) Heterozgous. C) Homogamous. D) Homozygous. Show Answer Correct Answer: D) Homozygous. 18. Which of the following human disease/s is/are hereditary in nature? A) Haemophilia. B) Phenylketonuria. C) Sickle-cell anaemia. D) All of the above. Show Answer Correct Answer: D) All of the above. 19. Linked genes are present in. A) Different chromosomes. B) Same chromosomes. C) Sex chromosomes. D) Autosomes. Show Answer Correct Answer: B) Same chromosomes. 20. The number of chromosomes in Turner, s Syndrome is. A) 45. B) 43. C) 46. D) 47. Show Answer Correct Answer: A) 45. 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