Question

63. Human ageing is a rapidly evolving area of health research because (select all that apply):

1. Nutrition and its potential impacts on lifelong health is better understood today.
2. Genes can be easily modified in humans to prolong life.
3. Epigenetics is increasingly important in predicting lifelong health.
4. We can better predict the risks of disease via genetic studies.
5. All people are now more likely to understand and apply information about healthy choices.

Select one:

A. I, IV, V

B. I, II, III, IV, V

C. II, III, IV

D. I, III, IV

Answer 1

ANSWER ; B I,II,III,IV,V

• Ageing is characterised as a progressive, generalised impairment of function resulting in increasing vulnerability to environmental challenges and an increased risk of developing disease
• Protein turnover removes proteins that are dysfunctional or no longer required but over time this process becomes less efficient.
• Calorie restricion has been shown to be the most effective method of increasing longevity.
• Epigenitics is important in maintaing lifespan of individuals since epigenetic changes can be added or removed in response to changes in behavior or environment.
• Gene editing can be done by controlling a lot of other genes that just happen to coordinate the survival system
• genetic engineering has the potential to improve the quality of life and allow for longer life span
• Inherited genetic variation within families clearly contributes both directly and indirectly to the pathogenesis of disease