Which of the following produces premature aging and early
death
Which of the following produces premature aging and early
death
Solutions
Expert Solution
Aging is the result of genetic programs akin to those of
development and morphogenesis,aging is due to evolutionary
non-adaptive homeostatic failures.Without the diseases of premature
aging, normal human life expectancy is estimated to be 120
years.
Premature aging of the brain, circulation, heart, joints, skin,
digestive tract, and immune system can begin at any time of life.
Various factors cause the body to deteriorate, including injuries
that do not heal completely, allergies, toxic chemicals, and heavy
metals, poor nutrition, excessive radiation sunlight, overwhelming
stress, and inactivity.
Sometimes premature aging occurs without any symptoms until,
suddenly, there is a catastrophic event such as a heart attack,
cancer, or a stroke. Other times, atrophy or tissue wasting can
occur, as in muscle weakness with lack of exercise, mucous membrane
and glandular deterioration with decreased hormone levels and brain
atrophy in Alzheimer's disease.
Frequently, however, a body that is aging prematurely sends a
message to its owner that it is malfunctioning. The most common
message is pain. The cause of the pain might include such factors
as inflammation, joint instability, insufficient blood supply, or
pressure within an organ or on surrounding tissues.
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Ataxia-telangiectasia (A-T) is a neurological
disorder that weakens immune system and causes premature aging.
According to Science News (June 24, 1995), when both
members of a couple carry the A-T gene, their children have a one
in five chance of developing the disease.
Consider 15 couples in which both members of a couple carry the
A-T gene. What is the probability that more than 4 of 15 couples
have children that develop the neurological disorder?
Consider 10,000 couples in which...
The following 5 stages are associated with early neural
development: Neuron death, Process Growth and Synapse Formation,
Aggregation, Proliferation, Migration. List these stages in the
correct temporal order in which they occur, starting with the
earliest, and describe in detail what happens in each stage
Which of the following is an effect on the pulmonary system due
to the aging process?
Question 3 options:
1)
More rigidity in alveolar walls
2)
Reduced respiratory rate
3)
Decreased chest wall compliance
4)
Increased elastic recoil
A function of which initiation factor is to prevent premature
joining of the large and small ribosomal subunits?
A.
eIF1A in eukaryotes and IF-1 in bacteria
B.
eIF2 in eukaryotes and IF-2 in bacteria
C.
eIF5 in eukaryotes and IF-3 in bacteria
D.
eIF3 in eukaryotes and IF-3 in bacteria
Which of the following is not a risk factor for
hypertension?
a.
genetics
b.
Aging
c.
High salt intake
d.
more than two alcoholic drinks a day
e.
Low calcium intake
A major factor in preventing heart disease and therefore
reducing the risk of early heart death is living a healthy
lifestyle. There are many factors that help keep our hearts
healthy:Living Smoke FreePreventing and Controlling
DiabetesControlling High Blood PressureKeeping Cholesterol in
Check Pick one of the above factors and thoroughly describe how it
negatively affects your heart health and how controlling the factor
increases your heart health. Give some advice on how you can
improve your lifestyle, examples heart healthy...
Tay-Sachs disease (TSD) is an inborn error of metabolism that
results in death, often in early
childhood. A phenotypically normal couple is considering
having a child. The male had a female
first cousin on his father’s side that died from TSD. The
female had a maternal uncle with TSD.
There are no other known cases in either of the families and
none of the matings has been
between related individuals. Assume this trait is very
rare.
a. Draw a pedigree...
Under which of the following conditions with the Southdale to
undergo apoptosis?
a) the disc (death inducing signaling complex) is assembled
with initiator capases
b) BH3 only proteins are inactivated
c) apaf1 proteins form the apoptosome
d) anti IAP are activated