Piwi-associated RNAs, piRNA, are a special class of miRNA found in germ cells have features distinct from miRNAs.  siRNA (small interfering RNA), which is typically produced during a virus infection.

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#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

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#Unit 8. Inheritance Biology

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#Unit 8. Inheritance Biology

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

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#Unit 8. Inheritance Biology

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

Interference = 1 − Coefficient of coincidence 

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#Id: 6641

#Unit 8. Inheritance Biology

TLS Online TPP Program

#Id: 6642

#Unit 8. Inheritance Biology