Term
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Definition
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Probability values are between... |
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Probabilities or expected frequencies of an event sum up to... |
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Definition
ONE
P(1) + P(2)+P(3)+...+P(n) = 1 |
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Definition
the occurrence of one event has no influence on the occurrence of the other event |
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when to use multiplication rule |
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Definition
when the probability uses the word and
P(A and B) = P(A) x P(B) |
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The probability of independent events occurring together |
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Definition
the product of their separate probabilities.
P(4 and Tail) = P(4) x P(Tail) = 1/6 x 1/2 = 1/12. |
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Definition
Non-overlapping, which means the two events cannot both occur at the same time |
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when to use the addition rule |
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Definition
when the probability uses the word or
P(A or B) = P(A) + P(B) |
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The probability that either event A or event B will occur |
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Definition
the sum of their separate probabilities.
P(Even) = P(2) or P(4) or P(6) P (Even) = P(2) + P(4) + P(6) = 1/6 + 1/6 + 1/6 = 1/2 |
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The probability that either event A or event B will occur when mutually exclusive |
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Definition
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Definition
when 2 events have one or more outcomes in common |
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probability of event A and event B occurring when they're non-mutually exclusive |
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Definition
P(A or B)=P(A) + P(B)-P(A and B) |
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Definition
our estimate of the probability on an event B will be modified based on partial information that we have or because we know a particular event A has taken place |
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Definition
the probability of B given A, where the '|' means 'given' |
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the probability of B given A |
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Definition
P(B | A)
the '|' means 'given' |
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P(B | A) if A and B are independent |
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Definition
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P(B | A) if A and B are mutually exclusive |
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Definition
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probability of both A and B occurring when A and B are dependent |
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Definition
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Term
Baye's theorem for conditional probabilities |
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Definition
P(B | A ) = P(A and B)/P(A)
P(Second|First)=P(First and Second)/P(First) |
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modified Baye's theorem for conditional probabilities (one that makes sense to me) |
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Definition
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The probability of obtaining exactly n successes in N trials is given by... |
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Definition
the limit of binomial distribution |
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the binomial expression when n = 2 |
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Definition
(p + q)2 = p2 + 2pq + q2 = 1
p and q represent mutually exclusive events |
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the binomial expression when n > 2, in this case, n = 5 |
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Definition
(p + q)5 = p5 + 5p4q1 + 10p3q2 + 10p2q3 + 5p1q4 + q5 |
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what does each letter in this equation represent? [image] DRAW THIS! |
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Definition
p = probability of dominant q = probability of recessive N = number of times k = number of dominants being tested for N-k = expected number of recessives |
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the number of chromosomes in birds |
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Definition
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the sex chromosomes in birds |
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Definition
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Definition
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which chromosome is bigger? Z or W? |
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Definition
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Definition
traits linked to the Z chromosome |
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why all sex-linked genes are dominant |
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Definition
because there are no alleles of the same gene on the W chromosome to offer dominance |
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Definition
Having one pair of a gene, e.g. a gene on the Z chromosome |
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Term
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Definition
type of inheritance in which phenotypic expression is limited to one sex, e.g., egg production and milk yield |
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sex-influenced inheritance |
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Definition
type of inheritance where mode of gene expression differs between males and females |
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Term
sex linkage or sex-linked inheritance |
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Definition
pattern of inheritance for genes located on sex chromosomes |
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examples of sex-limited inheritance |
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Definition
-egg production -milk yield |
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example of how day-old chicks can be sexed with minimum labor cost |
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Definition
-Barring is dominant over non-barring (solid black). -late feathering dominant over early feathering |
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Definition
the determination of relative positions of genes along the chromosome |
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Definition
Genes that are located on the same chromosome and do not undergo independent assortment but are instead transmitted together
they have less than 50% recombination frequency |
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Term
coupling or cis heterozygote |
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Definition
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Definition
coupling or cis heterozygote |
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repulsive or trans heterozygote |
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Definition
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Definition
repulsive or trans heterozygote |
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Definition
crossing over; this happens during meiosis |
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Recombination fraction (r) |
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Definition
the fraction of chromosomes that are recombinants, in an experiment to measure recombination rate |
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Definition
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Definition
have genotype that results from recombination |
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maximum frequency of recombinants for genes on the same chromosome |
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Definition
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maximum frequency of recombinants for genes on separate chromosomes |
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Definition
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Term
some characteristics of linked genes |
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Definition
-located on same chromosome -transmitted together -less than 50% recombination frequency |
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Term
when 2 genes on the same chromosome have recombination frequency < 50%,... |
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Definition
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when 2 genes on the same chromosome have recombination frequency ≥ 50%,... |
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Definition
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chi-square test that says genes assort independently |
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Definition
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chi-square test that says genes do not assort independently |
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Definition
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degrees of freedom when you're doing a chi-square for 1 locus |
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Definition
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Linkage between two genes is a measure of... |
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Definition
the probability that the two genes are being transmitted together to the offspring |
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Definition
illustrates the linear order of genes along the chromosome with distances between adjacent genes proportional to the recombination frequency between them |
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The unit of distance on a genetic map |
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Definition
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Definition
The unit of distance on a genetic map |
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One map unit represents... |
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Definition
1% recombination or crossing over event |
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how to calculate recombination frequency |
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Definition
Recombination frequency = (total number of recombinants)/(total number of individuals) |
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map unit is also called... |
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Definition
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Definition
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how double recombinants are counted to estimate distance between A and C |
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Definition
To estimate the distance between A and C, double recombinants are counted twice |
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Term
how to calculate expected number of double crossover |
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Definition
expected double crossing over = P(co A-B) x P(co B-C)
then you multiply by population size to get the expected number |
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when the observed number of double crossover is lower than the expected, this indicates... |
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Definition
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Definition
crossing over in one region reducing the probability of crossing over in the adjacent region |
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coefficient of coincidence |
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Definition
the ratio of the observed number of double crossovers to the expected number of double crossovers |
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how to calculate coefficient of coincidence |
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Definition
coefficient of coincidence = (observed double crossovers)/(expected double crossovers)
express it as a percent |
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how to calculate interference |
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Definition
Interference = 1 – Coefficient of coincidence
express it as a percent |
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Term
two initial goals that a primary breeder needs to accomplish before improving trait(s) |
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Definition
(1) Establish a population with no inbreeding. (2) Establish a population with maximum heterozygosity. |
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Definition
mating of individuals that are related to each other by ancestry or through a common ancestor |
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Term
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Definition
an ancestor common to the parents of an inbred individual |
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Term
when an individual is not inbred |
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Definition
when its parents do not have a common ancestor |
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Term
inbreeding coefficient (F) |
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Definition
The probability that two alleles at any locus in an individual are identical by descent. |
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Term
The inbreeding coefficient, F, compares... |
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Definition
the population in question with some specified or implied BASE Population. |
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inbreeding coefficient (F) of the base population |
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Definition
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Definition
inbreeding coefficient at generation 0 (t=0), and is equal to ZERO |
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Definition
the inbreeding in a population at generation t |
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Ft estimates the inbreeding in a population at generation t, by... |
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Definition
comparing the degree of relationship between individuals at generation t, and the base population |
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Term
the chance of a gamete uniting with another of the same type |
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Definition
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Probability that 2 alleles drawn at random are the same |
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Definition
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Probability that 2 alleles drawn at random are different |
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Definition
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Inbreeding at any generation is made up two parts, which are... |
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Definition
1. An increment of 1/2N attributed to new inbreeding 2. Remainder, attributed to previous inbreeding |
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Term
general equation for inbreeding |
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Definition
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Term
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Definition
1. An increment of 1/2N attributed to new inbreeding 2. Remainder, attributed to previous inbreeding |
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Term
increment attributed to new inbreeding |
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Definition
1/2N
the remainder is attributed to previous inbreeding |
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Definition
I think this is increment or rate of inbreeding |
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Term
how to calculate rate of inbreeding (ΔF) |
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Definition
ΔF = (1/2N)
Ft = ΔF + (1 - ΔF)Ft-1
ΔF = (Ft - Ft-1) / (1 - Ft-1) |
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main effect of inbreeding |
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Definition
decreases heterozygousity |
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Term
Steps to determine inbreeding of an individual when doing a pedigree |
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Definition
1. Identify the parents of individual I. 2. Identify the common ancestor of the parents of I. 3. Determine the number of generation between the common ancestor and the first parent (n) 4. Determine the number of generation between the common ancestor and the second parent (n’) |
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how to determine the inbreeding coefficient of individual, I |
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Definition
1. The parents of I are B and C 2. The common ancestor of B and C is A 3. The number of generation between A and B, i.e. n=1 4. The number of generation between A and C, i.e. n’=1 |
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how to calculate The additive genetic relationship (a) between two collateral relatives |
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Definition
a = (1/2)n+n’ (1 + F)
F = inbreeding coefficient of the common ancestor of the two collateral relatives |
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value of F when the inbreeding coefficient of the common ancestor is unknown |
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Definition
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the additive relationship between B and C in a pedigree |
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Definition
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Inbreeding coefficient of an individual is... |
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Definition
half of the additive relationship between its parents |
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inbreeding coefficient of I |
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Definition
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depiction of the tabular method |
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Definition
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2 key concepts in the tabular method |
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Definition
1. The additive relationship between an individual and itself 2. The additive relationship between an individual and another individual. |
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Additive relationship between an individual i and itself |
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Definition
aii = 1 + (1/2) asidi = 1 + Fi |
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Additive relationship between an individual i and individual j |
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Definition
aij = (1/2) (aisj + aidj ) = aji |
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Definition
the relationship between j and the sire of i |
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Definition
the relationship between j and the dam of i |
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value of aisj and aidj when the parents are absent |
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Definition
set to zero
unidentified parents are assumed to be unrelated |
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rules for doing a table relating to a pedigree |
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Definition
1. Write down animals from oldest to youngest in the first row 2. Write down animals from oldest to youngest in the first column 3. Write down the parents of animal in the first row on top of them. |
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depiction of a table based on a pedigree |
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Definition
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Definition
A measure of the level or frequency of heterozygous genotypes in the population |
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relationship between allele and genotype frequency |
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Definition
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when the frequency of heterozygotes is maximum |
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Definition
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relationship between heterozygosity, inbreeding, and allele frequency |
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Definition
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Definition
The unit of distance on a genetic map equivalent to 1% of recombination; also called a map unit. |
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Definition
The ratio of observed double crossover to the expected double crossovers. |
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Definition
The arrangement of linked genes in the double heterozygote in which both the dominant or recessive alleles are located on one chromatid. |
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Definition
An exchange of non-sister chromatids of a pair of homologous chromosomes that results in the recombination of linked genes. |
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Definition
A gene that is represented only on one sex chromosome and has no alternative allele on the other sex chromosome. |
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Definition
A measure of the level or frequency of heterozygous genotypes in the population. |
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Definition
Mating of individuals related by ancestry. |
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Definition
The ability of crossover in one region to inhibit crossover in the adjacent region. |
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Definition
The probability that two genes located on the same chromosome are transmitted together. |
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Definition
Alleles present in an offspring chromosome that are the same as that found in one of the parents. |
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Definition
A chromosome that results from crossing over, and carries allele combination that differ from that found in both parents. |
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Definition
The ratio of recombinants to the total number of gametic chromosomes. |
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Definition
The arrangement of linked genes in the double heterozygote in which one dominant and one recessive allele are located on one chromatid. |
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Definition
Traits determined by genes on the sex chromosome. |
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