Multiple Choice
Which of the following cell cycle checkpoints is extremely important in preventing cells from dividing prematurely, thereby maintaining proper timing of cell division?
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11. Cell Division
Introduction to Cell Division
Multiple Choice
What happens if an egg is not fertilized after being released from the ovary?
A
The egg is reabsorbed into the ovary for future use.
B
The egg remains in the fallopian tube and continues to mature.
C
The egg degenerates and is shed from the body during menstruation.
D
The egg fuses with a sperm cell to form a zygote.
Verified step by step guidance1
Step 1: Understand the process of ovulation. During ovulation, an egg is released from the ovary and travels into the fallopian tube, where it awaits fertilization by a sperm cell.
Step 2: Recognize the role of fertilization. If the egg is fertilized by a sperm cell, it forms a zygote, which then travels to the uterus for implantation and development into an embryo.
Step 3: Consider the scenario where fertilization does not occur. If the egg is not fertilized, it does not form a zygote and cannot proceed to implantation.
Step 4: Learn what happens to the unfertilized egg. The egg degenerates and is shed from the body during menstruation, along with the uterine lining that was prepared for potential implantation.
Step 5: Clarify misconceptions. The egg is not reabsorbed into the ovary, does not remain in the fallopian tube to mature further, and does not fuse with a sperm cell unless fertilization occurs.
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