A Key Factor in the Evolution of Killer Strains of Influenza

question 60

Multiple Choice

A key factor in the evolution of killer strains of influenza is that they

• A) only have eight genes.
• B) have an RNA genome.
• C) contain reverse transcriptase.
• D) have a segmented genome.
• E) have a circular chromosome.

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Definitions:

Newborn

An infant from birth to a few weeks old, characterized by rapid physical and neurological development during the initial stages of life outside the womb.

Genetic Disorder

A disease or condition caused by an abnormality in an individual's DNA, which can be inherited from parents or result from a new mutation.

Down Syndrome

A chromosome 21 trisomy that results in a condition marked by intellectual and developmental delays due to the complete or partial addition of a third chromosome 21.

Mother's Age

A demographic factor referring to the age of a mother at the time of her children's birth, often examined in studies for its effects on offspring.