The Following Questions Refer to This Phylogenetic Tree, Depicting the Origins

question 16

Multiple Choice

The following questions refer to this phylogenetic tree, depicting the origins of life and of the three domains. Horizontal lines indicate instances of gene or genome transfer.

-Which of these processes can be included among those responsible for the horizontal components of this phylogeny?

• A)endosymbiosis
• B)mitosis
• C)binary fission
• D)point mutations
• E)S phase of the cell cycle

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Definitions:

Prescription

A formal instruction written by a medical practitioner that authorizes a patient to be provided a medicine or treatment.

SARS

Severe Acute Respiratory Syndrome, a viral respiratory illness caused by a coronavirus, marked by fever, cough, and severe pneumonia.

Guangdong Province

A coastal province of southeast China, known for its economic dynamism and manufacturing industry.

Acute Respiratory Syndrome

A severe condition characterized by a sudden onset of respiratory distress, often involving symptoms such as fever, cough, and difficulty breathing.