Desmosine, an uncommon amino acid is derived from

TLS Online TPP Program

#Question id: 16133

#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:

 

Given the couple's desire to have a child without cystic fibrosis, which oocytes would you employ in vitro fertilization?

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#Question id: 2849

#Unit 2. Cellular Organization

Methylation of lysines 4, 36, or 79 of histone H3 typically is associated……… of the genes, whereas methylation of lysines 9 or 27 of the same histone frequently is associated with …..

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#Question id: 475

#Unit 1. Molecules and their Interaction Relevant to Biology

In an anaerobic muscle preparation, lactate formed from glucose labeled in C-2 would be labeled in:

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#Question id: 26918

#Unit 10. Ecological Principles

A place where the summary of the organism’s tolerances and requirements, referred to as

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#Question id: 34171

#Unit 3. Fundamental Processes

If the rate of fidelity of replication in bacteria is 10^-9/bp. How many replications it would take to make a mistake?