Home
Class 11
BIOLOGY
Assertion : Pili are nonmotile appendage...

Assertion : Pili are nonmotile appendages of bacteria.
Reason : Pili take part in conjugation.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B
Pili and fimbriae are non-motile appendages that are outgrowths of membrane. Pili are present in `F^(+)` bacteria and are used to transport F factor (fertility factor) from `F^(+)` bacteria to `F^(-)` bacteria during conjugation.
Promotional Banner

Similar Questions

Explore conceptually related problems

Surface appendage of bacteria meant for cell-cell attachement during conjugation is

Identify the correct Assertion and Reason Assertion : Bacteria develop resistance to antibiotics. Reason : We take antibiotics for minor infections also.

Assertion:(A): Paratope is the antigen -binding site Reason(R ): It is a part of antibody

Assertion : Pholem conducts food materials to different parts of the plant. Reason : Xylem conducts water and minerals to different parts of the plant.

Assertion: Pancreas is a heterocrine gland. Reason: Endocrine part secretes insulin and glucagon and exocrine part secretes an acidic pancreatic juice containing enzymes.

Assertion: Vegetables are important part of healthy eating. Reason: Vegetables are succulent structures of plants with pleasant aroma and flavours.

Assertion: Vegetables are important part of healthy eating. Reason: Vegetables are succulent structures of plants with pleasant aroma and flavours.