Question

people with the gene labeled 5-httlpr have an elevated risk of developing only if they also lead stressful lives. depression genetic abnormalities diabetes youth violence question 23 (4 points) ethel is 50 years old but appears much more aged. most of ethel’s relatives have not lived past the age of 60. which of the following genes are responsible for the accelerated aging observed in ethel and her family members? susceptibility genes longevity genes vulnerability genes mutated genes

Explanation:

First Question (People with the gene 5 - HTTLPR...):

The 5 - HTTLPR gene is related to the regulation of serotonin, and research has shown that individuals with this gene have an increased risk of developing depression when exposed to stressful life events. Genetic abnormalities are not specifically linked to this gene - stress interaction for development. Diabetes has different genetic and environmental risk factors not related to 5 - HTTLPR and stress in this way. Youth violence is more related to social, environmental, and other genetic - environmental interactions not involving 5 - HTTLPR and stress for depression - like outcomes.

Longevity genes are associated with the lifespan and aging process. If a family has shorter lifespans and accelerated aging, it can be related to the functioning of longevity genes (if they are not functioning optimally or are of a type that reduces lifespan). Susceptibility genes are more about susceptibility to diseases, not directly aging. Vulnerability genes are also more about disease vulnerability. Mutated genes is a broad term, and the question is about a specific type related to aging/lifespan, so longevity genes are the most appropriate.

Answer:

A. depression

Second Question (Ethel is 50 years old...):