The non-sex chromosomes present in organisms are the autosomes. Autosomes are known to transfer the somatic characters to the next generation of the same species, while sex chromosomes decide the sex or gender of the upcoming generation. In humans, there are 22 sets of autosomes; they are labelled or referred numerically from 1 to 22, like chromosome 1, chromosomes 2, chromosomes 3, etc.
Such a pair of chromosomes that regulate the somatic characters of the body are known as autosomes. What is the general term for a condition where the chromosome number is not a multiple of a complete set? These are also known as allosomes.
What is the cause of cleft lips and palates? Hence, the new daughter cells will receive a full complete copy chromosome, containing the genetic information of their parent cell.
In sex chromosomes the centromere position os non-identical. Here is a karyotype: all chromosomes in your body are arranged in pairs:. Key Differences Between Autosomes and Sex Chromosomes Given below are the critical points to understand the difference between the autosomes and sex chromosomes: The pair of chromosomes that regulate the somatic characters of the body are known as autosomeswhereas the pair of chromosomes that determines the sex of an organism, as they regulate the sex-linked traits are known as sex chromosomes or allosomes.
Like, the chromosomes 17 has the gene SOX9, that activates TDF transcription factor, this is essential in determining the male sex as this factor is encoded by the SRY gene found on the Y chromosome. The number of genes carried by autosomes varies from to , but in case of sex chromosomes, the Y chromosomes contain only a few genes, while X chromosome has more than genes.
In autosomes the centromere position is identical but in sex chromosomes the centromere position os non-identical. The chromosomes in each pair are of the same length, and even the centromere is placed in the same location. Impact of this question views around the world.