Double-stranded RNA (dsRNA) recognize by

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#Question id: 18595

#Unit 11. Evolution and Behavior

Which animal reptiles exist in the Permian periods of Paleozoic era?

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#Question id: 16132

#Unit 13. Methods in Biology

You are running a human assisted reproduction clinic and providing state-of-the-art genetic diagnostic services. A married couple who already had a child with cystic fibrosis approach you because they wish to have another child, but only if they can be assured that the child will not have cystic fibrosis. You genotype the woman and discover that she is a heterozygote for Del508, the most common mutation causing cystic fibrosis. You suggest that the couple consider first polar body testing, in which several unfertilized oocytes (each with its first polar body) are retrieved from the woman, the first polar bodies are removed, and PCR tests are conducted on DNA from each of the first polar bodies. The couple agrees, and you obtain the following results:

 

the observation that the polar bodies for oocytes #1 and #5 test positive for both Del508 and the wild type sequence, because

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#Question id: 27122

#Unit 4. Cell Communication and Cell Signaling

Which of the following combination does NOT contribute tumor formation?

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#Question id: 11589

#Unit 7. System Physiology – Animal

The body's reaction to parathyroid hormone (PTH), raising plasma levels of calcium, can be opposed by:

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#Question id: 3519

#Unit 8. Inheritance Biology

If quadruple heterozygote of genotype Aa Bb Cc Dd is self-fertilized, what is the probability of a quadruple heterozygote Aa Bb Cc Dd offspring is assuming independent assortment of all four pairs of alleles.