Sequence organisation of the repeating units in the nucleus of wheat which contain 5S rRNA genes. Open in a separate window. It means they autosomes are responsible for transferring the genetic information from parents to their offspring. Sex chromosomes are only 1 pair. X chromosomes contains more than genes while Y chromosomes contains only a few genes since it is small in size.
Cell Probes 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.
SOX9 gene is an autosomal gene on chromosome Autosomes are referred to numerically e. An Introduction to Genetic Analysis. Thus they do not have much implication in evolutionary processes such as mutation, selection, and genetic drift. The chromosomes that define all the features other than the sex-determining chromosomes are known as autosomes.
Autosomes represent the somatic characters of an organism, so they are also called somatic chromosomes. Autosomes vs. Females have two X chromosomes while males have X and Y chromosomes. Figure 1: Autosomal Dominant Inheritance.
The above discussion concludes that autosomes are homomorphic chromosomes, and they determine the trait of an organism; in contrast, the sex chromosomes are heteromorphic and as well as homomorphic, and they characteristically determine the sex of an individual.
An Introduction to Genetic Analysis. The main difference between autosomes and sex chromosomes is that autosomes are involved in determining the somatic characters of an individual and sex chromosomes are involved in determining the sex and the sex-related hormonal traits.
If an ovum unites with a sperm carrying X, the result is a female XX.
The X-chromosome is the only large metacentric element but many other elements have small short arms, even the Y-chromosome. Autosomes differ from sex chromosomes, which make up the 23 rd pair of chromosomes in all normal human cells and come in two forms, called X and Y.
This is appended here at the end. The eggs fertilized by X-bearing sperm become females XX whereas those fertilized by Y-bearing sperm becomes males XY.