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TLS Online TPP Program

#Id: 10051

The force accompanying the movement of Delta into the signaling cell stretches the Notch protein on the responding cell and allowing access by ADAM 10, which cleaves the Notch extracellular domain

#XL - T Zoology #Delta Notch Signaling #Part B Pointers
PYQ Links
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Extensive Links
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TLS Online TPP Program

#Id: 9210

#XL - T Zoology

Genetic bottleneck
Genetic drift arises is through a genetic bottleneck, which develops when a population undergoes a drastic reduction in size
TLS Online TPP Program

#Id: 9211

#XL - T Zoology

THE MAGNITUDE OF GENETIC DRIFT
n  = population size
pq=allelic frequency
sp2=variance in allelic frequency among the populations
TLS Online TPP Program

#Id: 9212

#XL - T Zoology

Loss of their original diversity per generation
=1/2n
Gain of their original diversity per generation
=1/2n 
Gain or Loss of their original diversity per generation
=1/4n
TLS Online TPP Program

#Id: 9213

#XL - T Zoology

Probability of being heterozygote in given population
H = 1 - 1/2N
TLS Online TPP Program

#Id: 9214

#XL - T Zoology

Effective population size(Ne)
Effective number of breeding adults in a population.
TLS Online TPP Program

#Id: 9215

#XL - T Zoology

Some factor determine Ne
1.Sex ratio.
2.Variation between individual in reproduction success.
3.Fluctuation in population size.
4.The age structure of the population.
5.Mating is random.