Q1. Which concept explains the inheritance of two genes located on different chromosomes?A. LinkageB. Law of Independent AssortmentC. PleiotropyD. Epistasis
Q2. Which of the following statements about genetic disorders is correct?A. Down’s syndrome is caused by trisomy of chromosome 18.B. Sickle-cell anemia is caused by a mutation in the β-globin gene.C. Klinefelter’s syndrome is caused by monosomy of the Y chromosome.D. Hemophilia is an autosomal dominant disorder.
Q3. Which of the following statements about Turner’s syndrome is correct?A. It is caused by trisomy of chromosome 21.B. Individuals have a 47, XXY chromosome composition.C. Affected individuals have only one X chromosome (45, XO).D. It affects only males.
Q4. Which of the following statements about the Law of Segregation is incorrect?A. It states that allele pairs separate during gamete formation.B. It explains why recessive traits can reappear in later generations.C. It applies only to genes on the same chromosome.D. It is one of Mendel’s fundamental principles of inheritance.
Q5. Which scientist developed the Punnett square to predict genetic crosses?A. Gregor MendelB. Reginald C. PunnettC. Thomas Hunt MorganD. Walter Sutton
Q6. Which type of inheritance is observed when a single gene influences multiple traits?A. Polygenic inheritanceB. Incomplete dominanceC. Co-dominanceD. Pleiotropy
Q7. Which of the following laws was proposed by Gregor Mendel based on his pea plant experiments?A. Law of EvolutionB. Law of SegregationC. Law of Independent MutationD. Law of Genetic Drift
Q8. Which of the following best describes polygenic inheritance?A. A single gene controls multiple traitsB. Multiple genes influence a single traitC. One gene completely masks another geneD. A single mutation affects multiple systems
Q9. Who proposed the Chromosomal Theory of Inheritance?A. Mendel and MorganB. Sutton and BoveriC. Watson and CrickD. Henking and Sturtevant