Answered: How are the femalegametes of…

How are the femalegametes of gymnospermsformed? What is therelationship between thisprocess and the concept ofalternation of generations?

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter14: Diversity Of Plants

Section: Chapter Questions

Problem 16CTQ: What are the four modern-day groups of gymnosperms?

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Question

How are the female
gametes of gymnosperms
formed? What is the
relationship between this
process and the concept of
alternation of generations?

Expert Solution

Step 1

Gymnosperms were the first seed-producing plants. They are diverse in leaf types and reproductive structures. They are vascular plants belong to the "subkingdom Embyophyta". It includes conifers, cycads, ginkgoes, and gnetophytes.

Step 2

Gymnosperms have a sporophyte life cycle. The mature sporophyte produces cones. Cones are the organs that bear the reproductive structures. There are two spore types, microspores (Pollen grains) and megaspores (mother cell). They are typically produced in male cones or female cones, respectively.

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