34 terms

Evolution (test questions)

test questions
fossils found in the lowest geological strata
the galapagos islands
the place darwin visited on his trip around the world that had the greatest impact on his thinking was...?
According to darwin, natural selection is based on the ___________ found in populations. (Fill in the blank)
Which of the following evolve? A. Populations, B. Genera, C. Kingdoms, D. Phyla, or E. Individuals
new alleles arise by
Immigration, mutation, crossing over, sexual reproduction
New variations of genes in a population maybe produced by what? (four things)
The hardy-weinberg formula
this is useful in determining the extent to which a sexually reproducing population is evolving.
if the frequency of expression of a recessive trait in a population is 16 percent, the frequency of the recessive allele would be what percent?
if the frequency of a recessive allele is 36%, the frequency of the dominant allele would be what percent?
the homozygous recessive genotype at a given locus
in the hardy-weinberg equation, the term q^2 refers to the frequency of..?
if the frequency of the recessive allele is 30%, the frequency of the heterzygous carrier would be what percent?
in a population that is in hardy-weinberg equilibrium, the frequency of the recessive homozygous genotype is 0.49. The percentage of the population that is heterozygous is....?
mutations that neither harm nor help an organism are called...?
Directional selection
When the organisms on one extreme of the population have a better chance to survive than those on the other extreme
Stabilizing selection
when the extremes of the population have a lesser chance to survive
disruptive selection
what favors the extremes of a range of variation
the founder effect
the introduction of a small population onto an island that results in a limited gene pool for a population describes...?
the bottleneck effect
the sharp reduction of the gene pool and the numbers of a population through a severe epidemic is an example of...?
the study of major paterns, trends, and rates of change among the lineages is included in...?
analogous; convergence
the wings of a bird and the wings of a butterfly are _____ and show morphological ______. (fill in the blanks) (first blank: Homologous or analogous) (Second blank:convergence or divergence)
specific amino acids are dictated by known nucleotide sequences.
comparisons of protein similarity between species can reveal the degree of genetic kinship because...?
interbreeding capabilities
In the biological species concept of Ernst Mayr, what aspect of a population is critical to determining a species?
can mate and produce fertile offspring
two individuals are members of the same species if they...?
the 13-year and 17-year cicadas are isolated by...?
what occurs after populations become reproductively isolated and diverge?
a tree
scientists have traditionally drawn evolutionary diagrams in the form of...?
gradually during speciation
the gradual model of evolutionary change proposes that most morphlogcal change occurs...?
which of the following groups represents the most closely related organisms? (kingdoms, species, orders, genera, taxa)
archaebacteria and eubacteria
which two kingdoms are made up entirely by prokaryotic organisms?
the big bang
an event marking the beginning of the universe, one of the most popular scientific theorys
free oxygen
the primitive earth's atmosphere did not contain...?
who demonstrated the possibility of producing organic compounds?
the first organisms were most probably....? (autotrophic, multicellular, protozoans, prokaryotic)
four of the five answers listed below are components of the mixture used in miller's experiment. Select the exception (hydrogen, oxygen, methane, ammonia, water)