Chromosomes in human body | Karyotype | Part 2 - أولى ثانوي - الترم الثاني - لغات
Channel: Mohamed Kadri - Science Simplified
Date: 19/02/2023

Chromosomes in human body is divided into somatic chromosomes and sex chromosomes 

Pairs from 1 to 22 in human body are somatic chromsomes 
but the last pair is representing the sex chromosomes. 

The sex chromosome carries the genetic information for determining sex, whether male or female

The 23rd pair in the female is homozygous, but the pair of chromosomes in the male is heterozygous

In the human body, all somatic cells contain 46 chromosomes. The sex cells contain 23 chromosomes and are found in the sperm and the egg.

Unit Three | Inheritance of Traits
Chapter One | Chromosomes and Genetic information
Lesson one | Chromosomes and Chromosomal Theory