Which phases of the menstrual cycle occur during the follicular phase of the ovarian cycle? Check all that apply. Check All That Apply1. Menstrual phaseMenstrual phase2. Proliferative phaseProliferative phase3. Secretory phaseSecretory phase4. Premenstrual phase

3. Secretory phase

Explanation:

The secretory phase of the ovarian cycle is when the uterine lining produces chemicals that will support an early pregnacy or help the lining to break down if pregnancy does not occur.

materials water oxygen those are the things i can think of in this moment.

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.