Looking at 3 allele per locus and following Hardy Weinberg equilibrium what will be the expected heterozygosity if q1=0.5, q2=0.3, q3=0.2

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#Question id: 12138

#Unit 10. Ecological Principles

The oak tree pathogen Phytophthora ramorum has migrated 650 km in ten years. West Nile virus spread from New York State to 46 others states in five years. The difference in the rate of spread is probably related to

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#Question id: 1169

#Unit 4. Cell Communication and Cell Signaling

A loss-of-function mutation in which of the following would inhibit TGFβ signaling?

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#Question id: 28268

#Unit 5. Developmental Biology

Resact from Arbacia egg jelly binds to its receptor on the sperm, which activates the receptor is___ 

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#Question id: 1581

#Unit 4. Cell Communication and Cell Signaling

An otherwise healthy student in your class is infected with EBV, the virus that causes infectious mononucleosis. The same student had already been infected when she was a child, and she had merely experienced a mild sore throat and swollen lymph nodes in her neck. This time, though infected, she does not get sick. 

Her immune systemʹs recognition of this infection will involve which of the following?

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#Question id: 5611

#Unit 5. Developmental Biology

Which ion play an essential role in pollen tube growth?