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How many of following features are corre...

How many of following features are correct w.r.t Gonyaulax ?
Diatomaceous earth, anterior two unequal flagella, toxin kill fishes, chief producers in ocean, red tides, stiff cellulose plate

A

`4`

B

`3`

C

`6`

D

`2`

Text Solution

AI Generated Solution

The correct Answer is:
To determine how many features are correct with respect to Gonyaulax, let's analyze each feature one by one: 1. **Diatomaceous Earth**: This option is incorrect. Diatomaceous earth is formed from the remains of diatoms, which are a different group of algae. Gonyaulax does not play a major role in the formation of diatomaceous earth. 2. **Anterior Two Unequal Flagella**: This option is also incorrect. Gonyaulax has two flagella, but they are not both anterior and unequal in the way described. One flagellum extends backward, while the other is wrapped around the cell in a lateral groove, aiding in rotational movement. 3. **Toxin that Kills Fishes**: This option is correct. Gonyaulax produces potent neurotoxins, such as Saxitoxin, which can be harmful to marine life, particularly shellfish, and can affect fish indirectly. 4. **Chief Producers in Ocean**: This option is incorrect. While Gonyaulax is a type of dinoflagellate, it is not considered a chief producer in the ocean. Phytoplankton, particularly diatoms and other types of algae, are the primary producers. 5. **Red Tides**: This option is correct. Gonyaulax is known to be associated with red tides, which are harmful algal blooms that can discolor the water and produce toxins. 6. **Stiff Cellulose Plate**: This option is correct. Gonyaulax is covered with stiff cellulose plates, which are characteristic of dinoflagellates. Now, let's summarize the correct and incorrect features: - Incorrect: Diatomaceous Earth, Anterior Two Unequal Flagella, Chief Producers in Ocean - Correct: Toxin that Kills Fishes, Red Tides, Stiff Cellulose Plate **Total Correct Features**: 3 (Toxin that Kills Fishes, Red Tides, Stiff Cellulose Plate) ### Final Answer: There are 3 correct features with respect to Gonyaulax.
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