which of the following is not a mechanism for sex determination?

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#Question id: 16134

#SCPH01 Biochemistry

You obtain 6 BACs (of known order, as shown below) and 7 STSs (of unknown order) that derive from a region of mouse chromosome 16 whose genomic sequence has not yet been finished.   

 

By PCR (using 20-bp primers at either end of each STS), you test each of the 6 BACs for the presence (+) or absence (-) of each of the 7 STSs. You obtain the following results:

 

You determine the DNA sequences of PCR products obtained at STS5 using BACs B, C, D, E, and F as PCR templates. The DNA sequences of PCR products obtained using BACs B and C are identical, but they differ by several nucleotide substitutions from the DNA sequences of PCR products obtained using BACs E and F. Oddly, PCR product obtained using BAC D appears to be a mixture of two sequences – one corresponding to the BAC B/ BAC C sequence and the other corresponding to the BAC E/ BAC F sequence. Briefly account for these findings, and explain how a single PCR assay could amplify two different sequences.

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#Question id: 16391

#SCPH28 | Zoology

What is the effect of alarm reaction?

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#Question id: 766

#SCPH28 | Zoology

With respect to microRNAs, which, if any, of the following statements, is true?

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#Question id: 13080

#SCPH28 | Zoology

In RAPDs amplification will take place only of those regions of the genome that have the 

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#Question id: 16009

#SCPH05 I Biotechnology

BLAST uses a ______ to find matching words, whereas FASTA identifies identical matching words using the ______.