In which of the following cases/s, pneumonia will occur from injecting Streptococcus pneumonia?
a) live R-type
b) killed S-type and live R-type
c) live S-type
d) both b and c
Explanation: live R-type transformed into S-type
In which of the following cases/s, pneumonia will occur from injecting Streptococcus pneumonia?
a) live R-type
b) killed S-type
c) killed R-type
d) all of these
Transformation in Streptococcus pneumonia was first studied by…….
a) Fredric Griffith
b) Avery and his coworker
c) Lederberg and Zinder
d) Lederberg and Tatum
Who identified the transforming substance as DNA?
a) Fredric Griffith
b) Avery and his coworker
c) Lederberg and Zinder
d) Lederberg and Tatum
Bacterial recombination by transduction was first reported by………
a) Fredric Griffith
b) Avery and his coworker
c) Lederberg and Zinder
d) Lederberg and Tatum
In which of the following method of genetic recombination, a piece of DNA is transmitted from donor bacterium to recipient by third party bacteriophage?
a) transformation
b) transduction
c) conjugation
d) binary fission
