MCQ
In Streptococcus pneumoniae
- ✓virulent form is smooth.
- Bvirulent form is rough.
- Cnonvirulent form is capsulated.
- Dall forms are rough.
✓
Answer
Correct option: A.
virulent form is smooth.
a
Griffith $(1928)$ described the phenomenon of bacterial transformation. He experimented with the smooth and rough strains of Streptococcus pneumoniae. Smooth strains of bacteria were virulent or pathogenic $\&$ cause pneumonia.
Griffith $(1928)$ described the phenomenon of bacterial transformation. He experimented with the smooth and rough strains of Streptococcus pneumoniae. Smooth strains of bacteria were virulent or pathogenic $\&$ cause pneumonia.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Test tube baby is the one
Suppose $2000 \mathrm{~J}$ of solar energy is incident on green vegetation. On the basis of $10 \;\%$ law of Lindeman. Identify $A, B$ and $C$
→Insect pollinated flowers are
Which of the following birth control measures can be considered as the safest?
Source of energy in an ecosystem is:
The most important cause of extinction of animals and plants, especially in tropical rain forests is:
$\text{DNA}$ replication is aided by:
→In which of these the sex chromosome have discovered for the first time?
Following enzymes/chemical/technique are used in the process of gel electrophoresis
→$I.$ sample $DNA$ is cut into fragments
$II.$ restriction endonucleases
$III.$ agarose gel
$IV.$ ethidium bromide
$V.$ UV-radiation
$VI.$ elution
Mark the correct sequence of their use
A family has five girls and no son. Probability of son as the $6^{th}$ child will be
→