bio review

secondary succession

the type of succession that would follow a flood

competitive exclusion principle

no two species can occupy the same niche in the same habitat

succession

series of predictable changes that occurs in a community over time

primary succession

type of succession that would happen on an exposed coral reef

range

total amount of area an organism can utilize

carrying capacity

largest # of a population that an ecosystem can support

logistic growth

population growth levels off after exponential growth

exponential growth

very rapid population growth

commensalism

one species benefits and the other is uneffected

mutualism

both species benefit

ecosystem

community plus abiotic factors

assimilation

absorption of nitrogen into the body of an organism

nitrogen fixation

process of bacteria in the soil converting n2 gas into a soil compound

biosphere

combined portions of the earth in which all living things exist

interdependence

all life in an ecosystem is connected

community

all the various populations in an area make up the…

all of a species per location

what makes up population

population

what makes up commmunities

tropic level

each step in the transfer of energy and matter in a good chain

denitrification

how nitrogen waste gets back into he atmosphere as N2 gas

biome

group of ecosystems that have a similar dominant species

ecology

study of interactions between organisms

replication

process that creates new DNA

transcription

process that creates mRNA

proteins

genes contain the codes for making…

DNA polymerase

enzyme that proofreads during replication

DNA helicase

enzyme that unzips dna strands in replication

intron

section of DNA that doesn’t code for a protein

histone

protein around which DNA coils

thymine DNA

adenine DNA

adenine RNA

uracil RNA

guanine

cytsine

codon

3 nitrogenous bases in mRNA that code for an amino acid

mutation

change in DNA

XXY

klinefelter syndrome

can’t clear mucus from their lungs

cystic fibrosis

polygenic inheritance

what kind of inheritance explains eye color

hemophilia

sex linked clotting disorder

sickle cell anemia

codominant genetic disorder

duchenne muscular distrophy

sex linked muscle degenerative disorder

achondroplasia

autosomal dominant disorder resulting in dwarfism

huntingtons disease

autosomal dominant neurodegenerative disorder

XO

turner syndrome

malaria

people who are heterozygous for sickle cell anemia are healthy because they are resistant to this

sex linked

since colorblindness is on the X chromosome it is considered…

law of segregation

pairs of alleles separate independently of one another during gamete formation

law of independent assortment

the inheritance of one trait does not influence the inheritance of another

punnet square

shows the results of a genetic cross