Question

The genera which belongs to the family Characeae are:
A. Tolypella
B. Nitella
C. Nigella
D. Chara
Choose the correct answer from the options given below:

• A. A, B and D only
• B. A, B and C only
• C. A, B, C and D
• D. B, C and D only

Hint:

Be careful with similar-sounding names in biology. {Nitella} (an alga) and {Nigella} (a flowering plant) are easily confused. Recalling that {Nigella sativa} is a spice can help you immediately identify it as a flowering plant and exclude it from an algal family.

Answer 1

The Correct Option is A

Step 1: Concept Overview:
The question requires identifying genera belonging to the Characeae family, a group of green algae also known as stoneworts, within the order Charales.
Step 2: Genus Analysis:
Let's examine each genus:

A. {Tolypella:} A genus within Characeae, closely related to {Chara} and {Nitella}.

B. {Nitella:} A common and widely distributed genus in the Characeae family.

C. {Nigella:} A flowering plant genus (angiosperm) in the Ranunculaceae family (buttercup family). {Nigella sativa} (black cumin) is a well-known species. It is not an alga and is not part of Characeae.

D. {Chara:} The type genus of the Characeae family and Charales order. It's a common and well-studied stonewort.

Step 3: Conclusion:
{Tolypella}, {Nitella}, and {Chara} are members of Characeae. {Nigella} is a flowering plant. Therefore, the correct answer is A, B, and D.