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The first division in zygote of Selagine...

The first division in zygote of Selaginella is

A

Transverse

B

Longitudinal

C

Oblique

D

Both A and B.

Text Solution

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The correct Answer is:
To solve the question regarding the first division in the zygote of Selaginella, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Organism**: Recognize that Selaginella is a type of plant, specifically known as spike moss or club moss. 2. **Understand the Zygote Formation**: A zygote is formed after fertilization, and it is the first cell of the new organism. 3. **Determine the Division Type**: The question asks about the orientation of the first division of the zygote. 4. **Recall Zygote Division Characteristics**: In Selaginella, the first division of the zygote is known to be transverse. This means that the division occurs horizontally, creating two cells stacked on top of each other. 5. **Identify the Resulting Cells**: The cell that is adjacent to the archegonial neck develops into the suspensor or suspensor cell, which is limited in extent. 6. **Select the Correct Answer**: Based on the information, the correct answer to the question is that the first division in the zygote of Selaginella is transverse. ### Final Answer: The first division in the zygote of Selaginella is **transverse**. ---
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