Which Sentence Best Describes Florigen and How It Acts at the Apical

question 16

Multiple Choice

Which sentence best describes florigen and how it acts at the apical meristem?

• A) Florigen is a protein that travels through the xylem to the apical meristem, where it activates the expression of meristem identity genes.
• B) Florigen is an mRNA that travels through the xylem to the apical meristem, where it activates the expression of genes that inhibit vegetative growth.
• C) Florigen is a protein that travels through the phloem to the apical meristem, where it activates the expression of meristem identity genes.
• D) Florigen is an mRNA that travels through the phloem to the apical meristem, where it activates the expression of meristem identity genes.
• E) Florigen is a protein that travels through the xylem to the apical meristem, where it activates genes suppressing apical growth.

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Definitions:

Infect Bacteria

The process by which harmful bacteria invade an organism, possibly causing disease.

Sex Pilus

A thin, tube-like structure produced by bacteria that facilitates the transfer of DNA between two cells.

Cellular Reproduction

The process by which cells divide to produce new cells, essential for growth, development, and repair of tissues in living organisms.

Conjugation

Mechanism of horizontal gene transfer in which one prokaryote passes a plasmid to another.