Physical changes in late adulthood and during death and dying Flashcards
1
Q
theories of aging
A
- Evolutionary
- mutation accumulation
- somatic mutation
- disposable soma
- antagonistic pleiotropy
2
Q
aging as a result of
declining fitness
A
Evolutionary
3
Q
single somatic cell accumulates multiple DNA
mutations, producing oncogenes that lead to cell
proliferation
A
somatic mutation
4
Q
genes with dual antagonistic effects at the opposite
ends of the spectrum of age
A
antagonistic pleiotropy
5
Q
a trade-off between resources related to
reproduction and those for somatic repair to
maintain function and survival
A
disposable soma
6
Q
genetic mutation occurs with time
A
Mutation accumulation
7
Q
what is hayflick limit
A
intrinsic limitation to cellular division
8
Q
state of permanent arrest
A
Cellular senescence
9
Q
reason why cells
physiologically senesce
A
Telomeric attrition
