Biology - Molecular Basis of Inheritance Question with Solution | TestHub
Given below are two statements:
Statement I - Avery, Mc Carty and Mac Leod first evidenced to prove the DNA is a genetic material.
Statement II - Hershey and Chase usedStreptococcus pneumoniaeto confirm the nature of the transforming principle.
In the light of the above statements, choose the correct option given below:
Options:
Answer:
Solution:
Statement I is correct because Oswald Avery, Colin MacLeod, and Maclyn McCarty (1933-1944) were the first to provide biochemical evidence that DNA is the genetic material. They determined the biochemical nature of the transforming principle in Griffith's experiment and concluded that DNA is the hereditary material.
Statement II is incorrect because Alfred Hershey and Martha Chase (1952) used bacteriophages (T2 phage) andEscherichia colito unequivocally prove that DNA is the genetic material.Streptococcus pneumoniaewas used by Frederick Griffith in his transformation experiments.
Answer: Statement I is correct but statement II is incorrect.
