What is the the name given to these units of inheritance which can be found on chromosomes? a. centromeres b. cytoplasm c. genes d. nucleotides?

the answer will be a) proteins i believe

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:

the correct answer is 2 and 4