| Exam 1 |
16 Feb |
All material thru 13 Feb |
|
| x2 01 |
18 Feb |
The maternal and paternal genes in a diploid individual SEGREGATE when gametes are produced,
so each gamete has only the gene from the father or
from the mother. Figuring out probabilities of specific gamete genotypes is the essence of genetics, because progeny individuals are produced by random union of one sperm
and one egg. |
If an individual is heterozygous, Ss, what
proportion of the gametes it will produce will have the S allele?
|
| x2 02 |
20 Feb |
Genes are places (locus) along DNA. All loci segregate in meiosis. INDEPENDENT ASSORTMENT refers to the outcome of segregation with respect to parental origin of genes. If
the loci assort independently then father(F)∙mother(M), & M∙F combinations of are as likely as F∙F and M∙M combination in gametes. slash notation separates genes from mother from those from father by a / ; |
How many different kinds of gametes could an
individual with the following genotypes produce?
A
HhMmOO
B VGvgSEse
|
| x2 03 |
23 Feb |
HYPOTHESIS TESTING: Exceptions to Mendel’s ‘laws’, ABO
blood types, one genotype implies one phenotype, ABO logic to solve
problems, RED/WHITE eyes in Drosophila, epistasis, coat color in
rodents, gene environment interaction |
In the ABO blood type system, the AB phenotype is an example
of what post-Mendelian genetic idea? |
| x2 04 |
25 Feb |
LINKAGE as non-independent assortment,
parental types, recombinant types, r = proportion of recombinants,
estimating r from data, constructing a gene map from data, procaryotic sex, genetic maps , slash notation revisited |
The diploid genotype Hq/hQ will produce _____ percent
HQ gametes if the H locus is 30 map units from the Q
locus? |
| x2 05 |
27
Feb |
GENOMICS: Genome is the complete DNA sequence of a species, DNA & amino acid sequences and mutation, sequencing techniques, open reading frames, extensive lateral gene transfer in non-eukaryotes, selfish DNA, microsatellites, gene families , small number of genes in humans |
Describe the relationships of globin gene family to sickle cell
anemia and malaria. |
| x2 06 |
2
Mar |
EVOLUTION: Pattern & Process -the idea-
necessary, sufficient, no genetic change means no evolution, logic of evolution, Darwin’s evidence of
evolution, adaptation, antibiotic and pesticide resistance evolution, populations and species are changing today, fitness
defined, |
Will antibiotics be able to work for viral diseases? Why or why not. |
| x2 07 |
4
Mar |
ALLELE FREQUENCY: counts and frequency, genotype frequency, allele frequency,
phenotype frequency, random mating = individuals
in pairs are proportional to genotype frequencies, gene flow, directional selection of alleles,
directional and stabilizing selection, finite populations, N individuals = 2N genes |
With 2 alleles in population, p+q always =1. True or false? |
| x2 08 |
6
Mar |
NEUTRAL THEORY, functional equivalence
called neutral, drift inversely proportional to population
size, 1/2N, F, fixation, probabilities, polymorphic loci, monomorphic loci, genetic bottleneck,
probability of fixation of neutral alleles, geographic genetic structure,
migration, phenotypic patterns of selection |
If at the
present time the frequencies of A and a are 0.15 and 0.85 respectively. What is the probability that far in
the future the A allele will have a frequency of 100%? |
| x2 09 |
9
Mar |
ADAPTATION: Stories that explain how features function, fish feeding, camouflage, warning coloration, area and volume, ways to increase
surface area, allometry, evolution does not necessarily result in
increased efficiency |
List all the types of changes in individuals
that can NOT be passed to progeny genetically? |
| x2 10 |
11
Mar |
SPECIATION Species descriptions,
range of species, subspecies, biological species concept, morphospecies species concept, phylogenetic species, colonization and extinction, distinctions people feel are
valuable (limited by logic), vicariance |
Species are types 'worth' distinguishing. Is it
possible to have disagreement under different values? |
| x2 11 |
13 Mar |
PHYLOGENY 1: reading a phylogeny, root, node, branch, sister taxa, monophyletic,
paraphyletic.
phenetic vs cladistic classification, shared
derived characters, need for an outgroup, bracket notation, phylogeny from DNA sequence, difference
matrix, putting changes onto a
phylogeny, definition of a clade, bifurcation |
What is cladogenesis and where does it occur on
a tree? |