Page 27 - Science E-Book Prep.3 2024-2025 1st term_Neat unit 3,4

Science Department
Prep.3

B. Sexual reproduction:

It is the process by which living organisms produce
individuals with traits differ from the parents.

a. Gametes formation b. Fertilization.

Fertilization: It is the combination
of the male gamete and female
gamete to form

- A zygote which contains the normal
number of chromosomes of the
organism.

-The offspring resulting from sexual reproduction
combines the genetic traitsfrom two sources.
- One of them is the male
parent and the other isthe
female parent.
- This means that the resulted offspring have
new genetic traits that combine the parent’s traits.
Thus, sexual reproduction is a source of genetic variation.

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First Term