Upon absorbing UV-B photons, the tryptophans undergo structural changes that break the salt bridges, leading to the dissociation of the two functionally active monomers. The monomers then interact with COP1–SPA complexes to activate gene expression

TLS Online TPP Program

#Id: 6637

#Unit 8. Inheritance Biology

Steps in determining gene order in a three-point cross 

Identify the non-recombinant progeny

Identify the double-crossover progeny

Compare the phenotypes of double-crossover progeny with the phenotypes of non- recombinant progeny

The characteristic that differs between the double crossover and the non-recombinant progeny is encoded by the middle gene

TLS Online TPP Program

#Id: 6638

#Unit 8. Inheritance Biology

TLS Online TPP Program

#Id: 6639

#Unit 8. Inheritance Biology

Coefficient of coincidence  Ratio of observed double crossovers to expected double crossovers.

TLS Online TPP Program

#Id: 6640

#Unit 8. Inheritance Biology

Interference- Degree to which one crossover interferes with additional crossovers.

Interference = 1 − Coefficient of coincidence 

TLS Online TPP Program

#Id: 6641

#Unit 8. Inheritance Biology

TLS Online TPP Program

#Id: 6642

#Unit 8. Inheritance Biology