Recent Research in Several More-Developed Countries Suggest That Life Expectancy

question 23

Multiple Choice

Recent research in several more-developed countries suggest that life expectancy is not only growing the numbers of people who are surviving to the end of normal work life, but pushing ___________ and disability back.

• A) Women
• B) Young adults
• C) Old age
• D) Men

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Definitions:

Y Chromosome

A sex chromosome found in males, typically paired with an X chromosome, determining male biological characteristics.

Dominant

Referring to a trait, gene, or allele that suppresses the expression of another trait, gene, or allele when both are present in an individual.

Recessive

Describing a gene that only expresses its trait when paired with an identical gene on the partner chromosome, often overshadowed by dominant genes.

Phenotype

The observable traits or characteristics of an organism, resulting from the interaction of its genotype with the environment.