Question 1

In the Gompertz mortality function equation,m(t)= qxeG(t),G(t)is defined as the:

Accepted Answer

A) mortality rate as a function of age at time t. 
B) Gompertz mortality constant at time t. 
C) age-specific mortality rate. 
D) mathematical constant. 
A) mortality rate as a function of age at time t. 
B) Gompertz mortality constant at time t. 
C) age-specific mortality rate. 
D) mathematical constant.

Question 2

Infant mortality rate is defined as the death rate of:

Accepted Answer

A) individuals in a human population at birth. 
B) individuals in a human population from birth to 1 year of age. 
C) individuals in a human population from birth to 1 week of age. 
D) mothers and infant in a human population at birth. 
A) individuals in a human population at birth. 
B) individuals in a human population from birth to 1 year of age. 
C) individuals in a human population from birth to 1 week of age. 
D) mothers and infant in a human population at birth.

Question 3

Death that is not the result of biological aging is known as:

Accepted Answer

A) age-independent mortality. 
B) an accident. 
C) fractional mortality. 
D) age-specific mortality. 
A) age-independent mortality. 
B) an accident. 
C) fractional mortality. 
D) age-specific mortality.

Question 4

Which process of epigenetic regulation unravels DNA from the histone?

Accepted Answer

A) deacetylation 
B) methylation 
C) demethylation 
D) acetylation 
A) deacetylation 
B) methylation 
C) demethylation 
D) acetylation

Question 5

Choose the best description of an epigenetic trait.

Accepted Answer

A) a phenotype resulting from changes in the DNA sequence after conception 
B) a genotype resulting from changes in the DNA sequence during meiosis 
C) a phenotype resulting from changes in a chromosome without alterations in the DNA sequence 
D) a genotype resulting from changes in a chromosome without alterations in the DNA sequence 
A) a phenotype resulting from changes in the DNA sequence after conception 
B) a genotype resulting from changes in the DNA sequence during meiosis 
C) a phenotype resulting from changes in a chromosome without alterations in the DNA sequence 
D) a genotype resulting from changes in a chromosome without alterations in the DNA sequence

Question 6

Maximum life span is:

Accepted Answer

A) the genetically determined longest possible life span for a species. 
B) the time of death of the longest lived individual in the population. 
C) the average age of those who have lived to 100 years of age. 
D) a statistical estimation of longevity of a species. 
A) the genetically determined longest possible life span for a species. 
B) the time of death of the longest lived individual in the population. 
C) the average age of those who have lived to 100 years of age. 
D) a statistical estimation of longevity of a species.

Question 7

Longitudinal studies have demonstrated that the rate of aging is linear with respect to time.

Accepted Answer

A) True 
 B)False

Question 8

The cohort effect is the inclusion in a cross-sectional study of individuals who have survived to a particular age.

Accepted Answer

A) True 
 B)False

Question 9

The age-specific mortality rate can be described by a(n)______ function.

Accepted Answer

A) linear 
B) curvilinear 
C) exponential 
D) quadratic 
A) linear 
B) curvilinear 
C) exponential 
D) quadratic

Question 10

The difficulties associated with using Gompertz analysis for comparisons between species can be partially reduced by using a simple calculation of:

Accepted Answer

A) the Gompertz mortality rate constant. 
B) mean life span. 
C) maximum life span. 
D) mortality rate doubling time,MRDT. 
A) the Gompertz mortality rate constant. 
B) mean life span. 
C) maximum life span. 
D) mortality rate doubling time,MRDT.

Question 11

An abridged life table uses age intervals of one year.

Accepted Answer

A) True 
 B)False

Question 12

Currently,the major limitation in the use of personal genomics in humans is:

Accepted Answer

A) the biotechnology does not yet exist. 
B) there are only a handful of known gene functions in humans. 
C) cost. 
D) government regulations. 
A) the biotechnology does not yet exist. 
B) there are only a handful of known gene functions in humans. 
C) cost. 
D) government regulations.

Question 13

What was the key finding in the Baltimore Longitudinal Study of Aging (BLSA)that changed the purpose of other longitudinal studies?

Accepted Answer

A) The rate of aging appears to be similar in most people. 
B) Aging is highly specific,not only for each individual,but also for different organ systems within the same individual. 
C) Population averages work well as descriptors of individual aging. 
D) There were no aging differences between males and females. 
A) The rate of aging appears to be similar in most people. 
B) Aging is highly specific,not only for each individual,but also for different organ systems within the same individual. 
C) Population averages work well as descriptors of individual aging. 
D) There were no aging differences between males and females.

Question 14

Deceleration of mortality rates at the end of life suggests that:

Accepted Answer

A) the oldest individuals in the population may be genetically different from the rest of the birth cohorts. 
B) age-specific mortality rates are inaccurate. 
C) longevity is not determined by genes selected for reproductive success. 
D) data in fruit flies are inconsistent with evolutionary theory. 
A) the oldest individuals in the population may be genetically different from the rest of the birth cohorts. 
B) age-specific mortality rates are inaccurate. 
C) longevity is not determined by genes selected for reproductive success. 
D) data in fruit flies are inconsistent with evolutionary theory.

Question 15

Like biomarkers for aging,biomarkers of childhood development are difficult to define. Measuring Biological Aging in a Population

Accepted Answer

A) True 
 B)False

Question 16

Longitudinal studies are no better at predicting the rate of aging and establishing a biomarker for aging than are cross-sectional analyses.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following is not an advantage of using cross-sectional designs in aging research?

Accepted Answer

A) simplicity 
B) low cost 
C) a general description of an aging phenomenon 
D) a good mechanism to describe aging in the individual 
A) simplicity 
B) low cost 
C) a general description of an aging phenomenon 
D) a good mechanism to describe aging in the individual

Question 18

Which variable provides an estimate for the intrinsic rate of aging?

Accepted Answer

A) life expectancy 
B) mortality rate 
C) maximum life span 
D) mean life span 
A) life expectancy 
B) mortality rate 
C) maximum life span 
D) mean life span

Question 19

The phenotype is the traits of an organism that are produced by the interaction between the genotype and the environment.

Accepted Answer

A) True 
 B)False

Question 20

The mortality rate for the 0- to 1-year interval in a current human life table is called the ______.

Accepted Answer

infant mor

In the Gompertz mortality function equation,m(t)= q_xe^G⁽^t⁾,G(t)is defined as the:

Infant mortality rate is defined as the death rate of:

Death that is not the result of biological aging is known as:

Which process of epigenetic regulation unravels DNA from the histone?

Choose the best description of an epigenetic trait.

Maximum life span is:

Longitudinal studies have demonstrated that the rate of aging is linear with respect to time.

The cohort effect is the inclusion in a cross-sectional study of individuals who have survived to a particular age.

The age-specific mortality rate can be described by a(n)______ function.

The difficulties associated with using Gompertz analysis for comparisons between species can be partially reduced by using a simple calculation of:

An abridged life table uses age intervals of one year.

Currently,the major limitation in the use of personal genomics in humans is:

What was the key finding in the Baltimore Longitudinal Study of Aging (BLSA)that changed the purpose of other longitudinal studies?

Deceleration of mortality rates at the end of life suggests that:

Like biomarkers for aging,biomarkers of childhood development are difficult to define. Measuring Biological Aging in a Population

Longitudinal studies are no better at predicting the rate of aging and establishing a biomarker for aging than are cross-sectional analyses.

Which of the following is not an advantage of using cross-sectional designs in aging research?

Which variable provides an estimate for the intrinsic rate of aging?

The phenotype is the traits of an organism that are produced by the interaction between the genotype and the environment.

The mortality rate for the 0- to 1-year interval in a current human life table is called the ______.

Basic Concepts in the Biology of Aging

Evolutionary Theories of Longevity and Aging

Cellular Aging

Genetics of Longevity

Plant Senescence

Human Longevity

The Physiology of Human Aging

Age-Related Disease in Humans

Modulating Human Aging and Longevity

Filters

Exam 2: Measuring Biological Aging

In the Gompertz mortality function equation,m(t)= qxeG(t),G(t)is defined as the:

Infant mortality rate is defined as the death rate of:

Death that is not the result of biological aging is known as:

Which process of epigenetic regulation unravels DNA from the histone?

Choose the best description of an epigenetic trait.

Maximum life span is:

Longitudinal studies have demonstrated that the rate of aging is linear with respect to time.

The cohort effect is the inclusion in a cross-sectional study of individuals who have survived to a particular age.

The age-specific mortality rate can be described by a(n)______ function.

The difficulties associated with using Gompertz analysis for comparisons between species can be partially reduced by using a simple calculation of:

An abridged life table uses age intervals of one year.

Currently,the major limitation in the use of personal genomics in humans is:

What was the key finding in the Baltimore Longitudinal Study of Aging (BLSA)that changed the purpose of other longitudinal studies?

Deceleration of mortality rates at the end of life suggests that:

Like biomarkers for aging,biomarkers of childhood development are difficult to define. Measuring Biological Aging in a Population

Longitudinal studies are no better at predicting the rate of aging and establishing a biomarker for aging than are cross-sectional analyses.

Which of the following is not an advantage of using cross-sectional designs in aging research?

Which variable provides an estimate for the intrinsic rate of aging?

The phenotype is the traits of an organism that are produced by the interaction between the genotype and the environment.

The mortality rate for the 0- to 1-year interval in a current human life table is called the ______.

Basic Concepts in the Biology of Aging

Evolutionary Theories of Longevity and Aging

Cellular Aging

Genetics of Longevity

Plant Senescence

Human Longevity

The Physiology of Human Aging

Age-Related Disease in Humans

Modulating Human Aging and Longevity

Filters

In the Gompertz mortality function equation,m(t)= q_xe^G⁽^t⁾,G(t)is defined as the: