Chem 31 SI 11/01/09
Chapter 7 Worksheet
Chapter 7 Worksheet
1. A) Draw a basic sine wave
B) Superimpose a second wave with the same wavelength but stronger amplitude
C) Superimpose a third wave with the same amplitude as the first but with a shorter wavel
CA Exam #1 Key for Short Answer Problems
1. What does accurate mean?
Accuracy refers to the closeness of a measured valued
compared to a standard or known value.
2. What does precise mean?
Precision refers to how well experi
]. Distinguish a solution from other types of mixtures.
2. Define.-"identify the solute. the solvent. and aqueous solutions.
3. Define molarity and use it to convert from volume of solution to moles of solute.
4. Perform dilution calculations.
1. Predict the structure of a molecule using VSEPR theory, including the effects
of lone pairs.
2. Predict if a molecule is polar or nonpolar, including the effects of molecular
1. Describe the central principle of v
Move from diploid to haploid (need genetic variety)
Locus- location of gene on chromosome
Variation occurs at meiosis
Gametes-haploid (sperm + egg)
Reproduce by mitosis(genetically identical to parent
Not that much g
Chapter 14 Outline
Particulate Hypothesis (genes)
Blending Hypothesis Example: Dad is tall and mom is short so kid is intermediate
Not Correct (world would have been all uniform
1. Law of Segregation
(Alleles get separated into gametes without depe
Welcome to BIO220!
Locke Rowe PhD (UBC)
Professor, and Chair, EEB
Canada Research Chair in Evolutionary Ecology
The evolution of developmental strategies
Early life effects on late life outcomes
The causes and consequenc
Congruence and Conflict
in Sexual Interactions
Indicator models and conditiondependent trait expression
Good genes (A Happy Story)
The essence of these models is that preferred
traits reflect the genetic quality of the male.
Indicator models an
in Evolutionary Medicine
Evolution in a vaccinated world
Environmental change and health
Vaccines are biological treatments meant to improve
immune responses to future exposures to specific dise
Deadly Viruses &
The Evolution of Virulence
Examples the problem
verbal theory (Ewald)
1918 Influenza Epidemic
March, 1918 a few dozen WWI recruits came
down with the flu
The Evolution of Resistance
Malaria: resistance in a host
Antibiotics: resistance in a bacterial pathogen
HIV: resistance in a viral pathogen
Evolution of Resistance in Malaria
350-500 million cases
1 million deaths
Mostly children in
Mutation Accumulation - Medawar
If force of selection declines with age, mutations that are neutral early in life (when 1/21/2013
selection is strong) but deleterious in late life (when selection is weak) accumulate in population.
Late-life del. genetic v
How different are the sexes, and why?
About 90% of genes are shared between
males and females, but .
Gene expression of shared genes
in most tissues differs between the
This is most evident in the gonads
90% of genes
But also in most o
The Evolution of Virulence II
An overview of the evolution of virulence
The evolution of influenza
Three Stages in the
Evolution of Virulence
Stage 1: Accidental Infection
Many pathogens can cause infections in novel hosts.
can't transfer pers
Who will care for the offspring?
Parent-offspring (PO) conflict
Parent-parent (PP) conflict
A combined PO and PP conflict
printed and written
Evolutionary explanations of cooperative
-builds big shelter (bower)
decorates around it
-entice female with bower
large variation of fitness, strong selection
drive bizarre difference