Discovered in 2007, the Hormones That Control the Timing of Flowering

question 51

Multiple Choice

Discovered in 2007, the hormones that control the timing of flowering are called:

• A)auxins.
• B)florigens.
• C)cytokinins.
• D)ethylenes.
• E)abscisic acids.

---

Definitions:

Glomeromycota

A phylum of fungi forming symbiotic relationships with the roots of most plants, aiding in their nutrient absorption.

Endomycorrhizae

A type of mycorrhiza in which the fungus penetrates the cortical cells of the roots of a vascular plant, forming a mutualistic relationship.

Chytrids

A phylum of simple, aquatic fungi that can be parasitic or saprobic and have a unique mode of mobility involving flagella.

Flagellate

A unicellular nonphotosynthetic protist that has one or more long, whiplike flagella.