A. each subdiscipline of genetics is very specific as to what is explored and does not overlap with the other subdisciplines. b. all phenotypes or traits are always determined by multiple genes. c. albinism rises from the overexpression of the gene that controls the synthesis and storage of melanin. d. humans make excellent model organisms, as a variety of traits are well-defined. e. none of the statements above are true.

i believe the correct answer is d

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.