A zygote is a:
Correct answer: D. Fertilized egg
- A. Two-celled embryo
- B. Solid ball of about 50 cells
- C. Blastocyst
- D. Fertilized egg
Explanation
Fertilized egg refers to the initial stage of development when a sperm cell fertilizes an egg cell, forming a single cell known as a zygote. This occurs during sexual reproduction in organisms like humans.
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About Reproduction
Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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