Chapter 20, Problem 3STP

Summary Introduction

Introduction :

The life cycle of mushroom has three stages- spores falling, hyphae developing, and finally mycelium forming. The creation and release of spores are done by the gills located under the mushroom cap. These spores are either single cell male or female attached together to form hyphae. Once one spore's hyphae meet another spore's hyphae they meet and combine to be the mechanism of mycelium growth.

Answer to Problem 3STP

Correct answer :

The correct answer is option (A) basidia form.

Explanation of Solution

Explanation/justification for the correct answer :

Option (A) basidia form. In mushroom life cycle, formation of basidia is the mating type to fuse. The cell mates and nuclear fusion takes place during basidia growth. So, the correct answer is option (a).

Explanation for incorrect answer :

Option (B) hyphae unite. When the hyphae of one spore meet the hyphae of another spore, they meet and combine to begin the process of producing mycelium. So, this is an incorrect option.

Option (C) mushroom form. The mushroom forms when the gills in the cap divide. So, this is an incorrect answer.

Option (D) spore release. The release of spores is carried out by the gills found underneath of the mushroom cap. So, this is an incorrect answer.