What gives dna its acid property?
a. the parts that make up the steps
b. the sugar
c. the part that alternates with sugars in a strand
d. the hydroxyl group attached to the 4' carbon
e. the covalent bonds that connect the steps to the strands

The correct answer will be option-C.

Explanation:

Each DNA molecule exists in helical shape made by two strands of nucleotides. Each nucleotide is composed of a five-carbon sugar, a phosphate group and nitrogenous bases.

The sugar-phosphate unit bond via the phospho-diester bond and form the backbone of the DNA. The phosphate functional group is acidic in nature as it donates the proton while the formation of the phosphodiester bond which provides DNA with the acidic nature.

Thus, Option-C is the correct answer.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."