An important change during adolescence for a female, is the beginning of a monthly cycle to prepare the uterus to receive and no
urish a possible fertilized egg. This monthly cycle is called the menstrual cycle. Ap- proximately every ____ days, an egg is released from one of the ______ and begins to travel down the ___________ _____. The _______ alternate the release of eggs. One month, the left _____ releases an egg, and the next month, the right _______ takes its turn. The release of an egg from an ovary is referred to as ____________. During this time, the ______ has been undergoing changes. The walls of the _______ fill with _________ and become thicker. If the egg that travels through the __________ ____ becomes fertilized by a ______ ______, then the egg will implant itself in the lining of the _________ and begin the process of devel- opment, which can lead to new life. If the egg isn't __________, it will break down and leave the body with the used _______ and tissue that had collected in the ________ wall. The blood and tissue leave the body through the ________ over an average ___ -day period of time. This is called ___________.
The cross of heterozygous AaBb as parental phenotype led to formation of 16 phenotype of the offspring.This is because this is dihybrid form of inheritance .The probability of having aabb offspring is 1/16 since there is only one aabb type of offspring phenotype out of the 16. An illustration of how crossing is done is as per punnet square below
