1. maria's symptoms are 1) wheezing, 2) problems gaining weight, and 3) salty
skin. what disease do you think maria suffers from? why? are there other
symptoms her parents might have missed?

Maria must be suffering from cystic fibrosis because all the given symptoms are symptoms of this disease. There might be other symptoms that her parents  might have missed.

Explanation:

Wheezing, salty skin and low weight gain etc are the most evident symptoms of cystic fibrosis. Cystic fibrosis is a genetic disorder that is inherited in an autosomal recessive manner. The disease mainly affects the lungs but it can also affect the liver, pancreas and kidney.

Sweat test and genetic testing are some of the diagnostic methods of cystic fibrosis. Greasy bowel movement is also a symptom of cystic fibrosis which Maria’s parents might have missed.

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.