Sodium benzoate is a bitter chemical often used in tiny amounts as a food preservative. the ability of humans to taste sodium benzoate is caused by a dominant allele, t. the recessive allele ("non-taster") is n. what are the genotypes of a "taster" and what are the genotypes of a "non-taster"?

If the dominant allele is t and the recessive allele ("non-taster") is n, than tn and tt are the  genotypes of a "taster". tn is heterozygous and tt is dominant homozygous. nn is the genotype of a "non-taster" and it is recessive homozygous.

eukarya because is is like alche and b is bacteria and d is animals

explanation:

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.