How can i remember the definition of exon? read below for the definition. i need memorizing it. an expressed sequence in the dna gene that remains after rna splicing.

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: