Someone who is heterozygous for recessive allele that cause a disorder

Someone who is heterozygous for a recessive allele that codes for a disorder of some sort will not express the disorder in his or her genotype, but would be considered a carrier of the allele, and could pass it on to his or her offspring if the other parent is either heterozygous or homozygous for the recessive allele.

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

the answer is c.) there is a warm front in region a and a stationary front in region b.