Term
|
Definition
*how we think about geetic behavior of a pop
* help derive genetic comp of a pop |
|
|
Term
|
Definition
f(RR)= N(RR)/N
f(Rr)= N(Rr)/N
f(rr)= N(rr)/N
N(xx): # ind w/ xx
N: total # ind |
|
|
Term
|
Definition
f(R) = N(R)/2N
f(r) = N(r)/2N
N(x): (#ind XX)(2) + (#ind Xx)(1) |
|
|
Term
| Relationship between allele and geno freq |
|
Definition
GIVEN GENO, FIND ALLELE
*if know geno, know allele b/c for a given geno freq, only 1 allele freq work
GIVEN ALLELE, FIND GENO
*if know allele freq, DONT know geno b/c lots of geno freq conform to 1set of allele
*have lots of geno freq that can conform to allele freq
*have multiple ways to get allele freq so dont know for sure |
|
|
Term
|
Definition
| quantifying our belief in the possible outcomes of a future event |
|
|
Term
|
Definition
| the outcome of 1 won't affect the outcome of another |
|
|
Term
|
Definition
JOINT P FOR INDEPENDENT EVENTS
*apply AND rule
MUTUALLY EXCLUSIVE
*1 outcome happens so the other cannot happen @ the same time
*apply OR rule |
|
|
Term
|
Definition
prediction of the relationship between allele and geno freq (when given allele, predicts geno freq)
*important b/c we can make predictions about breeding strats and see if they're successful
*useful when know geno b/c helps make predictions for how well a breeding plan will work |
|
|
Term
|
Definition
f(RR) = f(R)^2
f(Rr) = 2f(R)f(r)
f(rr) = f(r)^2
f(R)= p
f(r)= q
f(RR) = P
f(Rr) = H
f(rr) = Q
P=p^2
Q= q^2
H= 2pq
p+q=1
p^2 + 2pq + q^2 = 1
P + H + Q = 1 |
|
|
Term
|
Definition
| *human pop conforms to HWE b/c we assume random mating to a specific locus |
|
|
Term
|
Definition
| particular alleles are removed or enriched in a pop |
|
|
Term
|
Definition
CULLING NOT EFFECTIVE
*when ind is in a low freq in pop
*only eliminiating a small number of 'e' alleles and there are many in hetero state masked by dom E
*vast majority in hetero, and cant select against it in hetero state
*very difficult to remove a recessive allele w/ pheno selection |
|
|
Term
|
Definition
*P of producing a delterious allele w/ a relative is high
*ind mate w/ relatives and prod offspring that are less fit b/c inc chances of pairing deleterious alleles (b/c relatives share alleles) |
|
|
Term
|
Definition
*if you have recessive allele @ low freq, it only becomes present in hetero state, so cant select against w/ pheno selection
*@ low freq, most receessive deleterious alleles are in hetero state and cacnt be selected against |
|
|
Term
|
Definition
* w
* an organisms ability to contribute to the next gen
*takes into account survival and repro state
w= 1 <-- geno w/ highest freq |
|
|
Term
|
Definition
*how much a particular geno is selected against
*strength of selection agaisnt a geno allows to describe amore broad range of scenarios about a geno relative contrib to next gen
*influence how much allele freq changes in a single gen of selection |
|
|
Term
|
Definition
| bringing an allele to the freq =1 (meaning only allele present in a pop) |
|
|
Term
| Important Factors that influence how much an allele freq changes in a single gen of selection |
|
Definition
1) SELECTION COEFF
* stronger seection --> more of a freq allele change
2) DOMINANCE PATTERN
3) STARTING ALLELE FREQ |
|
|
Term
| Graphing freq of advantageous alleles over time |
|
Definition
COMPLETELY DOM A+ ALLELE
* arises in hetero state & rises in freq quickly but never goes to fixation b/c cant purge non-adv allele
COMPLETELY RECESSIVE A+ ALLELE
*if a recessive mutation arises its in hetero state & cant be selected for quickly but once it does, it eventually reaches fixation
NO DOMINANCE
*rises quickly and reaches fixation |
|
|
