Rapid Progress in the Elucidation of Signal Transduction Pathways in Plant

question 168

Multiple Choice

Rapid progress in the elucidation of signal transduction pathways in plant hormone action has been made using the model plant, Arabidopsis thaliana.Genetic screens involve the following steps: 1.Mapping and cloning of a gene
2) Selection of a phenotype
3) Exposure of seeds to a chemical mutagen
"4) Germination of the seeds and identification of mutants
Which of the following shows these steps in their proper sequence?"

• A) 2, 1, 3, 4
• B) 1, 2, 4, 3
• C) 2, 3, 4, 1
• D) 1, 2, 3, 4
• E) 3, 2, 4, 1

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Definitions:

Rheumatoid Arthritis

A chronic inflammatory disorder affecting joints, characterized by pain, swelling, and reduced mobility.

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Pertaining to the system of blood vessels and organs that circulate blood and lymph throughout the body, maintaining tissue health and function.

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A substance found in blood, urine, or body tissues that can be elevated in cancer and may help in diagnosing or monitoring treatment.

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