Question

now read a related problem.
differences in traits such as hair texture are determined by differences in —
a the location of sugar groups in dna
b the order of nitrogenous bases along the dna
c the number of different bases in dna
d the molecules attached to the phosphate in dna
similar to staar biology 2017 #12
what is your answer to the problem?
choose...
you will get feedback on your answer later in this lesson.

Explanation:

Traits like hair texture are determined by DNA, and the genetic code (which dictates traits) is based on the order of nitrogenous bases (A, T, C, G) in DNA. Option A: Sugar group location in DNA is consistent (deoxyribose), so not a trait determinant. Option C: All DNA has 4 types of bases (A, T, C, G), so number of different bases isn't variable for traits. Option D: The phosphate - molecule attachment is consistent in DNA structure. Only the order of nitrogenous bases (Option B) varies and codes for different traits.

Answer:

B. the order of nitrogenous bases along the DNA