What is the effect of a nonsense mutation in a gene? what is the effect of a nonsense mutation in a gene? it introduces a premature stop codon into the mrna. it has no effect on the amino acid sequence of the encoded protein. it changes an amino acid in the encoded protein. it alters the reading frame of the mrna. it prevents introns from being excised?

"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."