MCQs on 1. History of Genetics and Cytogenetics

PRACTICE QUESTIONS: 1. History of Genetics and Cytogenetics

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Source: Principles of Genetics and Plant Breeding by BD Singh 

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–Who is credited with disproving the theory of spontaneous generation and laying the foundation for experimental biology?

• A. Charles Darwin
• B. Caspar Friedrich Wolff
• C. Francesco Redi#
• D. August Weismann

What term did Johannsen introduce in 1903 to describe the genetic makeup of an individual?

• A. Genotype#
• B. Phenotype
• C. Hybridization
• D. Germplasm

What concept proposed by Yule in 1906 explained the inheritance of quantitative or metric characters?

• A. Dominance
• B. Blending inheritance
• C. Pureline theory
• D. Multiple factors#

Who conducted experiments on Drosophila melanogaster, providing evidence for the chromosome theory of heredity?

• A. Gregor Mendel
• B. Thomas Hunt Morgan#
• C. August Weismann
• D. Charles Darwin

Which scientist discovered nucleic acids and isolated DNA in the late 19th century?

• A. James Watson
• B. Friedrich Miescher#
• C. Rosalind Franklin
• D. Linus Pauling

Who is known as the "father of genetics" for his work on the inheritance of traits in pea plants?

• A. Charles Darwin
• B. Thomas Hunt Morgan
• C. Gregor Mendel#
• D. August Weismann

What concept did Sutton and Boveri contribute to, linking chromosomes to Mendelian genetics?

• A. Germplasm theory
• B. Pureline theory
• C. Chromosome theory of inheritance#
• D. Blending inheritance

What did Watson and Crick propose in 1953, earning them a Nobel Prize in 1962?

• A. Theory of evolution
• B. Double-helix model of DNA#
• C. Germplasm theory
• D. Theory of acquired traits