Leave a Reply Cancel reply Your email address will not be published. By signing up, you agree to our Privacy Notice. The 22 pairs of autosomes are referred to by number basically in inverse correlation with their size. There are a few numbers of sex chromosomes in our genome.
Female offspring are produced by the mutation on SOX9 gene in humans.
Learn More in these related Britannica articles:. Related questions What are four types of chromosomal mutations? More About. Such chromosomes that play a vital role in determining the gender or sex of humans or other species of animals are known as sex chromosome.
Such a pair of chromosomes that regulate the somatic characters of the body are known as autosomes.
Sex chromosomes: Sex-linked disorders show Non-Mendelian inheritance. The Y chromosomes contain only a few genes, while X chromosome has more than genes. Johnson, N. Even a small deletion or addition of autosomal material—too small to be seen by normal karyotyping methods—can produce serious malformations and intellectual disability.
Heteromorphic sex chromosomes inherit unequal times through offspring.
See Article History. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. One chromosome of each pair came from your mom and the other from your dad when their gametes got fertilised and a zygote was formed.
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