Describe the human karyotype. Compare the karyotype of a man and a woman, conclude.

A human karyotype is represented by 23 pairs of chromosomes, one of which is sex chromosomes. The woman has sex chromosomes XX, the man XU. The male U-chromosome is short, different from X. In all other pairs, the chromosomes are the same.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.