Antagonistic pleiotropy - Study guides, Revision notes & Summaries

A population was observed to increase from 5000 to 6000 individuals in one year, What is the rate of increase? - Rate of increase = 6000/5000 Advantages of reproducing later in life? - More resources available for Individuals An allele that is advantageous early in life but will be deleterious later in life will be SELECTED because of greater contribution of the early classes. TRUE OR FALSE? - TRUE Another Simple Case assumption? - The rate at which a population increases is a simple multip...

Detailed notes explaining the dominating theories of ageing: evolutionary (mutation accumulation, antagonistic pleiotropy) and mechanistic (damage versus maintenance, hyperfunction).

Evolution of the eye - ANSWER-1. Early chordates had light-sensitive eye-spots expressing photoreceptor genes 2. Light-sensitive regions bulge outward to the sides of the head 3. Patch folds inward into a cup, beneath unpigmented skin (lens placode) 4. Surface becomes transparent, and lens evolves ability to focus an image 5.Eyes become spherical and evolve greater acuity Constraints on adaptation - ANSWER-Laws of physics Existing genetic toolkit Pleiotropy (especially antagonistic ple...

NUR 3311 Final Exam Questions And Answers Latest Updated 2024 (GRADED A+) der adults is minimal due to ownership of high-value assets. B)Private insurers most often cover the payment for long-term care of older adults. C)Most older adults have their basic care needs provided in a long-term facility. D)Federal money pays for more care than do older adults or private insurers. - Answer D)Federal money pays for more care than do older adults or private insurers. A nurse is providing care to a...

3. REVEALING TRADE-OFFS: THE USE OF MULTIVARIATE QUANTITATIVE GENETICS 3.1. Life-History Trade-Offs and Genetic Correlations The existence of trade-offs between different components of fitness is fundamental to much of life-history theory. If these constraints are to affect evolutionary processes, which evolutionary ecologists typically assume they will, they must have a genetic basis, requiring the action of either antagonistic pleiotropy or linked genes with antagonistic effects, and the...

A nurse who works on a subacute medical unit of a hospital has noticed that the population of older adults being admitted to the unit has been increasing over the past few years. The nurse engages a colleague in a discussion about this finding. Which statement by the colleague would be most reflective of current thinking about older adults? A)"Fortunately, Social Security ensures a sufficient level of income for people over 65." B)"It helps that older people don't have to incur any cost...

NUR 3311 Final Exam Questions With Correct Answers Latest Updated 2024 (GRADED A+) A public health nurse who directs a homecare program that serves an area with a large population of older adults is conducting a long-term strategic plan. Which phenomenon would be most important for the nurse to integrate when planning for the future? A)While life expectancy will continue to rise, the percentage of older adults in the United States relative to the overall population will decrease. B)By 2030, ...

NUR 3311 Final Exam Questions And Answers Updated 2024/2025 (GRADED A+) A public health nurse who directs a homecare program that serves an area with a large population of older adults is conducting a long-term strategic plan. Which phenomenon would be most important for the nurse to integrate when planning for the future? A)While life expectancy will continue to rise, the percentage of older adults in the United States relative to the overall population will decrease. B)By 2030, it is expec...

Evolution-Exam 2 questions and answers 100% guaranteed success. genetic drift - correct es genetic variation results from random sampling faster rate in a small pop (alleles become fixed) genetic bottleneck - correct genetic drift by drastically reducing population size rare alleles are likely to be lost ie elephant seals founder effect - correct answers.a type of genetic drift random sampling founding a new population with very few individuals new popu...

NUR 209 EXAM What is elder abuse? A) physical abuse B) Psychological/emotional abuse C) sexual abuse D)Financial exploitation E) neglect/abandonment F) all of the above - All of the above What is heathy aging? A) independent and productive citizens B) healthy active lives C) care closer to come D) support for unpaid caregivers E) all of the above - all of the above What one is not one of the aspects of healthy aging? A) access B) quality C) acceptability D) choic...