Ch16 population genetics
Ch17 micro/macro ev
Ch19 taxonomy
Ch28 vocab
Misc.
100
What is a condition of HW
Large pop, random mating, no migration, no mutation, no nat selection
100
The giant red urchin and the purple urchin both live off the west coast of the United States and even though their eggs and sperm come into contact through broadcast spawning, no fertilization occurs. This describes which prezygotic isolating mechanism.
Gametic isolation
100
What did Woese use (as evidence) to challenge Whittakers kingdoms
rRNA
100
In the kingdom animalia glucose is stored as
glycogen
100
what is the HW equation used to find the frequency of dominate or recessive alleles?
p+q=1
200
Changes in allele frequency in a gene pool due to CHANCE is known as
Genetic drift
200
What are the conditions (2) included in the biological species definition
Genetically separated and reproductively isolated
200
A heterotrophic absorptive domain
fungi
200
An acoelomate organism is ____(triplo or diplo)
triplo
200
California elephant seals will mate with all females in their territory and defend said territory from other males. The loser of the match does not get to mate that season. This is an example of
Male competition
300
The graph shows
stabilizing selection
300
A model that describes macroevolution as having spurts of relatively rapid change followed by long periods of stasis
punctuated equilibrium model by gould and eldridge
as commpared to gradualism model- slow gradual changes in isolated popualtion
300
Looking at the shared derived trait whiskers is this an example of mono para or polyphyletic?
polyphyletic- the most recent common ancestor does not have whiskers;
300
This is an example of a/an
pseudocoelomate
300
When Arizona's Grand Canyon formed, squirrels and other small mammals that had once been part of a single population could no longer contact and reproduce with each other across this new geographic barrier. They could no longer interbreed. The squirrel population underwent allopatric speciation. Today, two separate squirrel species inhabit the north and south rims of the canyon. This describes
allopatric speciation
400
A mechanism for preserving variation in a population in which the heterozygote is more fit that the wild type or homozygous for the mutation
Heterozygote advantage
400
After binge watching Tiger King on Netflix you do some research on some cats Exotic Joe had. Tigers and Lions are sister taxa, and their common ancestor is millions of years back. Their chromosomes are not homologous, so do not migrate normally at meiosis.
- male tiger x lioness --> tigon
- male lion x tigress --> liger
Their hybrid offspring are viable and robust, but sterile.
A mating between a lion and leopard will produce sterile hybrids. A mating between a tiger and leopard will produce inviable hybrids-Zygotes divide, but embryo miscarries or is stillborn.
What type of isolating mechanism describes a Liger.
Hybrid sterility
400
The common ancestral species has trait ABC, and two diverging species have variations of ABC evolved for their lifestyle. How could you describe the trait ABC in this phylogeny? (hint: what is the derived trait?)
ABC is the ancestral trait
aBC and AbC are derived traits
400
Concentration of brain and sensory organs to an anterior end
cephalization
400
What replaced Whittakers kingdom monera
domain bacteria and archaea
500
The Amish can be an example of founder effect, a subset of __________. Due to this the Amish have a small gene pool that often has inbreeding involved. Besides social consequences, what is the effect of inbreeding genetically.
genetic drift
inbreeding increases frequency of recessive genetic disorders
500
Marsupial and placental mammals diverged from a common ancestor more than 100 million years ago, and have evolved independently ever since. The two groups have different modes of reproduction, yet within each group individual species that occupy similar niches have evolved similarities in overall shape, locomotion, and feeding habits.. This mode of speciation is known as
convergent evolution
500
Using fossils evidence and measures the number of changes, or mutations, which accumulate in the gene sequences of different species over time. It is a good resource to help establish when two species diverged.
Molecular clock
500
Describe the symmetry of the phylum Porifera
asymmetrical
500
out of he 1.5 million known species what % are vertebrates
<3%