This scientific understanding, in turn, has translated into much more reliable methods for developing similar copies, as well as for manufacturing them more efficiently, making it easier to sell the products as lower cost alternatives.
Our experience highlights that hard copies as well as electronic copies are crucial for an enterprise like this.
Students can download the material free or print copies for as much as $40, Allen said.
In the end, the publishers rely on legislative history relating to a portion of the Act which specifies procedures for obtaining single copies as authority for limiting the rights under the section of the Act that expressly permits multiple copies for classroom use.
This could be explained either by divergence of one of the sequences, making amplification of both copies with primers designed on Oryza sativa impossible, or loss of one copy, as for the majority of duplicated genes in rice through the diploidization process [ 8].
I've just finished Eleanor Marx: A Life by Rachel Holmes (Bloomsbury) and have already given copies as gifts, for holiday reading.
The TLR2 data measurement demonstrated a similar result to that of ALU J (figure 1B), but with considerably lower copies as expected for a single copy target.
Samples of vRNA were extracted from all processed transport media and water samples (stored at −80°C) and analyzed by qRRT-PCR to quantify M-gene copies as described for experiment 1.
This lower value allowed us to detect putative homeologous and paralogous copies, as expected for highly repeated rDNA arrays.
In Gossypium, we found that each diploid representative had a single CenH3 gene and that all allopolyploid species had two, indicating retention of both parental copies, as reported for Brassica and Oryza [ 30, 32, 40].
