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:

1. Involves Two Parents – A male and a female contribute gametes.
2. Fusion of Gametes – The male sperm cell fertilizes the female egg cell.
3. Genetic Variation – The offspring inherit traits from both parents, leading to diversity.
4. Meiosis Process – Gametes are formed through meiosis, reducing chromosome numbers by half.
5. 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.