Which represent a deletion of the section of dna shown here- a-c-tg-g-a-t? (a)- a-c-t-c-g-a-t (b)- a-c-t-c-c-t-t (c)- a-t-c-t-g-g-a-t (d)- a-c-t-a-t

the major parts of the digestive system:

salivary glands.

pharynx.

esophagus.

stomach.

small intestine.

large intestine.

rectum.

accessory digestive organs: liver, gallbladder, pancreas.

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.