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Largest sperm in the plant kingdom is of...

Largest sperm in the plant kingdom is of :

A

Pinus

B

Cycas

C

Ephedra

D

Sequoia

Text Solution

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The correct Answer is:
To solve the question regarding which plant has the largest sperm in the plant kingdom, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Options**: The question provides four options: - A) Pinus (Gymnosperm) - B) Cycas (Gymnosperm) - C) Ephedra (Gymnosperm) - D) Sequoia (Gymnosperm) 2. **Understand the Context**: All the options listed are Gymnosperms. Gymnosperms are a group of seed-producing plants that includes conifers and cycads. 3. **Focus on the Largest Sperm**: The question specifically asks for the largest sperm in the plant kingdom. Among Gymnosperms, it is known that Cycas has the largest sperm. 4. **Confirm the Characteristics of Cycas Sperm**: - The sperm of Cycas is approximately 300 micrometers in size, making it the largest in the biological world. - The shape of the sperm is described as top-shaped. - It possesses multiple flagella, typically arranged in 5 to 6 grooves at one end. 5. **Select the Correct Option**: Based on the information gathered, the correct answer to the question is: - **B) Cycas** ### Final Answer: The largest sperm in the plant kingdom is that of **Cycas**. ---
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