The somatic cell of a cat contains 38 chromosomes (2n = 38). how many chromosomes and how many dna molecules would the secondary spermatocyte of this cat have?

19

Explanation:

The secondary spermatocyte is formed in the process of spermatogenesis that occurs in the testis of the cat. It begins with a germ cell/primary spermatocyte that is diploid, that undergoes meiosis I turning it into a haploid secondary spermatocyte. The secondary spermatocyte then undergoes meiosis II to turn it into spermatids.  

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.