Which of the following protein acts synergistically with R-spondin1 (Rspo1)?

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#Question id: 1484

#Unit 4. Cell Communication and Cell Signaling

DNA damage or ultraviolet irradiation leads to induction of synthesis of the BH3-only, termed as:

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#Question id: 7159

#Unit 5. Developmental Biology

'Intercalary growth' in a regenerating amphibian limb means that if a distal blastema is grafted to a proximal stump:

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#Question id: 23658

#Unit 13. Methods in Biology

How many recombinant clones must be screened in order to be 99% certain that a particular gene is found in a YAC library of human DNA where the average size of an insert is 500 kbp? The human genome size is about 3.2 x 10⁶ kbp. 

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#Question id: 12446

#Unit 10. Ecological Principles

Which of the following factors will affect population growth rates?

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#Question id: 12077

#Unit 7. System Physiology – Animal

 RU486 causes abortion if it is administered before or soon after implantation. What is the specific effect of RU486?