The case p = 0 occurs when F1 animals are heterozygous for a balancer and a marked chromosome, with the mutation of interest induced on the latter.
Soon after the appearance of forelimbs, most pond-dwelling salamanders develop an ectodermal projection known as a balancer on each side of the head.
We tested this approach for coordinating two autonomic managers addressing resource optimization: self-Sizing, which manages the degree of replication for a system based on a load balancer scheme, and Dvfs, which manages the level of CPU frequency for a single node.
Homozygous males were used for the slp1[DESE], slp1[DESE+PESE], P{MSE-lacZ}, and P{Dm rho[NEE]-lacZ}3 reporters, whereas heterozygous males were used for the P{PZ}slp1[05965] enhancer trap transposon and the P{ry[+t7.2] = ftz/lacC}1 reporter gene which is carried on a CyO balancer.
More generally, however, the number of haploid genomes examined is given by a times n (an) where a takes on the value of either 1 or 2. For example, if a mutation in a gene of interest is suspected to be lethal or sterile, attempts to induce it on a marked chromosome, opposite a balancer chromosome, are often undertaken [7].
On two occasions, we recovered a balancer onto which the triple knockout had been recombined (the reciprocal product), which was verified by PCR, proving that the source of breakdown is in fact from the balancer (see Figure S3).
For each pigP vector, we used a number of different donor lines carried on marked balancer chromosomes or on the 4th chromosome to counteract any donor-specific mobilisation bias.
LOAD BALANCER: a balancer associated with Virtual Machines; 5.
As there are still regions in the C. elegans genome without a balancer, and conventional balancers can break (Edgley et al. 2006), this method might simplify and accelerate progress for researchers whose experiments depend on successful balancing.
