What is Sexual Reproduction _ It’s Meaning and Definition When two parents (opposite sex).
What is Sexual Reproduction _ It’s Meaning and Definition When two parents (opposite sex).
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Sexual Reproduction: Meaning and Definition
Definition of Sexual Reproduction
Sexual reproduction is a type of reproduction that involves two parents of opposite sex, where male and female gametes (sperm and egg) fuse to form a new organism with a unique genetic combination.
Key Features of Sexual Reproduction:
- Involves Two Parents – A male and a female contribute gametes.
- Fusion of Gametes – The male sperm cell fertilizes the female egg cell.
- Genetic Variation – The offspring inherit traits from both parents, leading to diversity.
- Meiosis Process – Gametes are formed through meiosis, reducing chromosome numbers by half.
- Zygote Formation – The fertilized egg (zygote) develops into a new organism.
Examples of Sexual Reproduction:
- Humans and Animals: Mammals, birds, fish, amphibians, etc.
- Plants: Flowering plants reproduce sexually through pollination and fertilization.
Advantages of Sexual Reproduction:
Genetic Diversity – Helps in adaptation and evolution.
Better Survival Rate – Reduces the risk of genetic diseases.
Variation Leads to Evolution – New traits develop over generations.
Disadvantages of Sexual Reproduction:
Takes More Time and Energy – Finding a mate and producing offspring requires effort.
Slower Population Growth – Compared to asexual reproduction.
Conclusion:
Sexual reproduction is a biological process that ensures genetic diversity and evolution by combining genetic material from two parents. It is essential for the survival and adaptation of species over time.
