The product of 2 x 104 cm and 4 x 10–12 cm, expressed in scientific notation is a. 8 x 10–7 cm2 b. 6 x 10–8 cm2 c. 8 x 10–8 cm2 d. 8 x 10–48 cm2

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.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.