Total number of tetrads in a human meiocyte is 

In humans, meiosis occurs in cells called germ cells, which undergo meiosis to produce gametes. During prophase I of meiosis, homologous chromosomes pair up to form structures called bivalents or tetrads.

Humans have a total of 23 pairs of homologous chromosomes, resulting in 46 chromosomes in total. Therefore, during prophase I of meiosis, there are 23 tetrads formed, as each pair of homologous chromosomes forms one tetrad.

So, the total number of tetrads in a human meiocyte is 23.