Which of the following genes limit the number of undifferentiated meristem cells?

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#Question id: 28639

#Unit 2. Cellular Organization

Degradation of Sic1 is induced by___

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#Question id: 1983

#Unit 4. Cell Communication and Cell Signaling

These cells are involved in innate immunity, and a person lacking these cells may have a higher than normal chance of developing malignant tumors:

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#Question id: 15821

#Unit 8. Inheritance Biology

Your friends Ben and Jane are contemplating having children and seek your genetic counsel. Ben and Jane are unrelated, but both have younger brothers with the same, extremely rare genetic trait. (In fact, Ben and Jane met at a support group meeting for children and families of children with this rare disorder.) Ben’s parents and Jane’s parents are all unaffected.          

Assume that the trait is autosomal recessive with 80% penetrance. What is the probability that Ben and Jane’s first child will be affected?

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#Question id: 5142

#Unit 5. Developmental Biology

The D set of blastomeres is the “organizer” of snail embryos. Experiments have demonstrated that the non-diffusible polar lobe [cortical] cytoplasm that is localized to the D blastomere is extremely important in normal molluscan development.  Which of the following is incorrect?

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#Question id: 18992

#Unit 13. Methods in Biology

Which of the following is not an advantage of Syringe type pumps used in High pressure liquid chromatography?