A zygote is the product of the fusion of an egg and a sperm. It contains two copies of each chromosome, one from each parent. Egg and sperms cells, on the other hand, each contain only one copy of each chromosome.
No. Baclofen is a muscle relaxer and an anti-spastic agent.
In a study published in April 2014 in The Journal of Neuroscience, researchers from three U.S. institutions explored the potential role of a medication called baclofen (usually prescribed to ease certain forms of severe muscle spasming) in helping recovering cocaine addicts avoid experiencing a drug relapse.