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:

M/D/1 System

A queueing model describing a service system with a single server, Poisson arrival process, deterministic service times, and a queue capacity of one.

Exponential Service

A distribution model describing the time between events in a Poisson process, often used in queuing theory to model times between services.

Poisson Arrival

Describes a process where events occur randomly and independently of one another at a constant average rate, often used in queueing theory.

Waiting Line System

A methodical process used to manage the queue of entities waiting to receive services, optimizing both service and waiting times.