How do you know if a trait is dominant if you only see the genotype?

The letter will be capitalized

Explanation:

for example Nn the (N) is dominant the (n) is recessive Or NN is a dominant traits but nn is not a dominant it can only be reccesive if there are no dominants

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.