Sperm-specific calcium channels are encoded by which gene? 

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#Question id: 19272

#Unit 9. Diversity of Life Forms

The seed coat’s most important function is to provide 

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#Question id: 31103

#Unit 2. Cellular Organization

Cytochalasin D,  a fungal alkaloid, depolymerizes actin filaments by:

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#Question id: 1051

#Unit 4. Cell Communication and Cell Signaling

The shape of the virus is determined by its

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#Question id: 2791

#Unit 2. Cellular Organization

In mammals, X-chromosome inactivation

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#Question id: 19120

#Unit 8. Inheritance Biology

Trisomy 18 is one of the most common trisomies observed in human populations. You prepare DNA samples from two unrelated infants, both with trisomy 18, and from their parents. You then type the infants and their parents for four SSRs distributed along chromosome 18:

 

                                      

In which parent did nondisjunction occur in Family 1?