Biogeography Essay
EXAM 3
Importance in the study of ________in understanding evolution -Biogeography
Human birth weight is a classic example of the result of
-Stabilizing Selection
In humans x-linked traits
-Occur on the x chromosome
“Survival of the fittest” may be a misleading phrase to describe the process of evolution by natural selection because -Survival matters less to the natural selection then reproductive success does How can 2 pea plants that have different genotypes for seed color be identical in phenotypes? -½ plants could be homozygous for the dominant allele while the other one could be heterozygous An example of convergent evolution it can be demonstrated that organisms of the 2 groups that converged -Occupy similar environments
The …show more content…
A women and man both normally pigmented have an albino child. What’s the genotype? -Homozygous recessive
Embryos of certain species of vertebrates look alike at certain stages of development supports -All vertebrates descends from a common ancestor
Evolution
-Change in frequency of alleles in a pop. Over time
In snapdragons there’s an allele for flower color “c” that produces no pigment. A plant “CwCw” will produce _______flowers -White
Red flower, dominant, white recessive. Can it be white?
-O%
Vestigial structure
-In bats for liquids diets eye sockets in eyeless fish pelvic bones in whales Darwin observed that tortoises in a nearby island belonged to same biological species. How would he know? -Local people told him
Down syndrome results from what chromosome abnormality
-All or part of a 3rd copy of chromosome 21
Change in light to dark due to soot
-Directional selection
Population bottleneck occurs when
-Pop size is significantly reduced, pop killed off, loss within single generation Quickly adapting species
-Already had some traits that were adaptive to the new environmental conditions Autosomal recessive traits
-Can skip
Importance in the study of ________in understanding evolution -Biogeography
Human birth weight is a classic example of the result of
-Stabilizing Selection
In humans x-linked traits
-Occur on the x chromosome
“Survival of the fittest” may be a misleading phrase to describe the process of evolution by natural selection because -Survival matters less to the natural selection then reproductive success does How can 2 pea plants that have different genotypes for seed color be identical in phenotypes? -½ plants could be homozygous for the dominant allele while the other one could be heterozygous An example of convergent evolution it can be demonstrated that organisms of the 2 groups that converged -Occupy similar environments
The …show more content…
A women and man both normally pigmented have an albino child. What’s the genotype? -Homozygous recessive
Embryos of certain species of vertebrates look alike at certain stages of development supports -All vertebrates descends from a common ancestor
Evolution
-Change in frequency of alleles in a pop. Over time
In snapdragons there’s an allele for flower color “c” that produces no pigment. A plant “CwCw” will produce _______flowers -White
Red flower, dominant, white recessive. Can it be white?
-O%
Vestigial structure
-In bats for liquids diets eye sockets in eyeless fish pelvic bones in whales Darwin observed that tortoises in a nearby island belonged to same biological species. How would he know? -Local people told him
Down syndrome results from what chromosome abnormality
-All or part of a 3rd copy of chromosome 21
Change in light to dark due to soot
-Directional selection
Population bottleneck occurs when
-Pop size is significantly reduced, pop killed off, loss within single generation Quickly adapting species
-Already had some traits that were adaptive to the new environmental conditions Autosomal recessive traits
-Can skip