Question

Conjugation in Rockweed occur

• A. in seawater
• B. in freshwater
• C. in parasitic association
• D. in symbiotic association

Hint:

\[ \boxed{ \textit{Fucus} \text{ (Rockweed) is a marine brown alga.} } \] Its fertilization takes place in \[ \boxed{\text{seawater}.} \]

Answer 1

The Correct Option is A

Step 1: Identify Rockweed. Rockweed (Fucus) is a brown alga belonging to the class Phaeophyceae. It is a \[ \boxed{\text{marine (sea water) alga}.} \]

Step 2: Recall reproduction. Sexual reproduction (conjugation/fertilization of gametes) in Fucus takes place in \[ \boxed{\text{seawater}.} \]

Step 3: Choose the correct option. Hence, the correct option is \[ \boxed{(A).} \]