A fertilized egg receives 50% of its chromosomes from a sperm and 50% from the egg. Which process ensures that the sperm and egg contain only 50% of the chromosomes of an organism? A. fertilization
B. meiosis
C. mitosis
D. mutation

B

Explanation:

Meiosis ensures that the sperm and egg contain only 50-50.10% of the chromosomes of an organism.

convalent bond :

is a chemical bond formed by the sharing of electron between 2 atoms.

it is the direct chemical bond between 2 atoms.

in bond formation atoms are involved here.

electrovalent bond:

is a chemical bond defined as electroststic attraction between 2 atoms.

it is the electrostatic attraction between 2 atoms.

in bond formation, ions are involved here.

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