2. The fungal-algal symbiosis producing lichens is thought to have evolved several times independently in different fungal groups. However, lichens fall into three well-defined growth forms- crustose, foliose, and fruticose. Do you think the growth forms represent monophyletic or polyphyletic groups? Explain why you think so.

Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter30: Fungi
Section: Chapter Questions
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Please answer question 2
1. If being diploid increases an individual's genetic diversity, why does your group think that most fungi spend the majority of their life cycle as a haploid
individual? Also, why does your group think fungi have a heterokaryotic stage? Why don't fungi produce a diploid condition immediately following
plasmogamy?
2. The fungal-algal symbiosis producing lichens is thought to have evolved several times independently in different fungal groups. However, lichens fall
into three well-defined growth forms - crustose, foliose, and fruticose. Do you think the growth forms represent monophyletic or polyphyletic
groups? Explain why you thỉnk so.
Transcribed Image Text:1. If being diploid increases an individual's genetic diversity, why does your group think that most fungi spend the majority of their life cycle as a haploid individual? Also, why does your group think fungi have a heterokaryotic stage? Why don't fungi produce a diploid condition immediately following plasmogamy? 2. The fungal-algal symbiosis producing lichens is thought to have evolved several times independently in different fungal groups. However, lichens fall into three well-defined growth forms - crustose, foliose, and fruticose. Do you think the growth forms represent monophyletic or polyphyletic groups? Explain why you thỉnk so.
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