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Female gametophyte in conifers and cycad...

Female gametophyte in conifers and cycads is `:`

A

Haploid embryo sac

B

Diploid nucellus

C

Haploid endosperm

D

Triploid endosperm

Text Solution

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The correct Answer is:
To solve the question regarding the female gametophyte in conifers and cycads, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Group**: Recognize that conifers and cycads belong to the group known as gymnosperms. Gymnosperms are characterized by having naked seeds, meaning their ovules are not enclosed by an ovary wall. 2. **Understand Female Gametophyte**: In gymnosperms, the female gametophyte develops within the ovule. This structure is crucial for reproduction as it contains the egg cell. 3. **Determine the Ploidy Level**: The female gametophyte in gymnosperms is haploid. This means it has a single set of chromosomes. 4. **Identify the Endosperm**: After fertilization, the zygote develops into an embryo, and the persistent female gametophyte becomes the endosperm. In gymnosperms, the endosperm is haploid, unlike in angiosperms, where it is triploid. 5. **Select the Correct Answer**: Given the options provided in the question, the correct answer is that the female gametophyte in conifers and cycads is a haploid endosperm. ### Final Answer: The female gametophyte in conifers and cycads is a **haploid endosperm**. ---
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