Under ideal conditions, how do allele frequencies change over timer A. The frequency of the dominant allele increases in each generation
B. The frequency of the recessive allele increases in each generation.
C. The alleles eventually reach a 50/50 balance,
D. The allele frequency does not change from one generation to the
next.

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.

well the answer is 2!