What part of the DNA determines the traits of an organism?
the amount of adenine, guanine, cytosine, and thymine
the number of sugars in the backbone of the double helix
the specific sequence of the nitrogen bases
D
the hydrogen bonds holding the double helix together

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:

very