Home › AP Biology › Biology › DNA Structure and Function › Griffith's 1928 experiments with Streptococcus p…
Griffith's 1928 experiments with Streptococcus pneumoniae demonstrated:
AProtein synthesis
BBacterial conjugation
CEnzyme specificity
DBacterial transformation
Answer & Solution
Correct answer: D. Bacterial transformation
1. Griffith was perhaps the first person to show that hereditary information could be transferred horizontally rather than by descent.
2. In 1928 he reported the first demonstration of bacterial transformation.
3. Transformation is a process in which external DNA is taken up by a cell, thereby changing morphology and physiology.
4. He was working with Streptococcus pneumoniae, the bacterium that causes pneumonia.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 14 'DNA Structure and Function', sections 14.1-14.6_
Related questions
A limitation of Sanger's original sequencing method is that it can read:Rosalind Franklin did not share the Nobel Prize for the DNA structure because:The phosphodiester bond of the DNA backbone joins which two carbons?How many base pairs are there in one complete turn of the DNA helix?Each base pair sits how far from the next along the helix?Purines differ from pyrimidines structurally because purines have:The two strands of a DNA double helix are antiparallel, meaning one runs 5' to 3' and the In the Hershey and Chase centrifugation, the heavier bacterial cells ended up in the: