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 division of meiosis did nondisjunction occur in Family 2?

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#Question id: 2738

#Unit 2. Cellular Organization

Which of the following function is not served by DNA packaging?

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#Question id: 28901

#Unit 4. Cell Communication and Cell Signaling

Delipidation process to cleaves off Wnt’s attached lipids is an example of which mechanism?

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#Question id: 3801

#Unit 3. Fundamental Processes

Why should patients with xeroderma pigmentosum avoid sunlight?

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#Question id: 11105

#Unit 7. System Physiology – Animal

Which one of the following is NOT a function of the paranasal sinuses:

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#Question id: 7100

#Unit 5. Developmental Biology

If cells from the animal pole of a frog blastula (animal cap cells) are placed into contact with cells from the vegetal hemisphere, after removing the cells fated to form mesoderm, what is the result?