Question

If the egg is not fertilized, it lives for about one day.
Is it true or false?
A. True
B. False

Answer 1

A normal ovulation phase remains for about $24$ hours in a woman every month. It is a part of the menstrual cycle which denotes the correct time for initiating the process to pregnancy. It is controlled by two hormones, the Follicle stimulating hormone and the Luteinizing hormone.

Complete answer:
Pregnancy is very simple as well as a complicated process when it comes to understanding through different psychologies. But before it can happen, there is a series of events that take place inside the woman’s body.
Medically, pregnancy is only valid after the implantation is complete but for it to happen, the egg must be released first and then fertilized.
The egg is released from the ovary and this process is known as ovulation. This is associated with the hormones of the menstrual cycle. It takes $28 - 30$ days for an egg to mature in the ovary. Once it is matured, it is released by the ovary and the fimbriae of the fallopian tubes collect it and pass it to the ampulla. There it stays for a maximum of $24$ hours. Two events can happen with this released egg.
Either it is going to get fertilized and by the sperm which will form a zygote and this zygote after multiple divisions form the blastula which gets implanted on the endometrium of the uterus. Medically, this condition is called pregnancy.
If not the previous event, there can be no fertilization and the egg disintegrates along with the endometrium and the normal menstruation discharge begins $11 - 14$ days later.
Therefore, the line stated above is true in all senses that if the egg is not fertilized after ovulation it only remains alive up to one day or $24$ hours.
So, the correct answer is “Option A”.

Note:
The ovulated egg can only last up to $24$ hours. If fertilization does not take place it gets removed along with the menstrual discharge. The two hormones responsible work in synchrony to make the entire process happen. The follicle stimulating hormone is responsible for the maturation of the primary and secondary follicles in the ovary to the Graafian follicle. This mature Graafian follicle releases the ovum through ovulation and transports it to the ampulla of the fallopian tubes. After this the Graafian follicle gets converted to Corpus luteum. The Luteinizing hormone stimulates the Corpus luteum to release steroid hormones progesterone for the preparation and maintenance of the uterus for pregnancy.